Virtual currency ATN
Publish: 2021-05-19 06:54:44
1. "How can we cut the candles in the west window together, but talk about the rain at night in Bashan mountain?" the hard spring rain is gentle, and the cool Chen dew and white fog rise all around, drowning the small and lonely rain city in sleep“ The candle of "west window" is not cotton, has the ancient people who walk with horses come back
whether the eyes are bleak or not, Shaohua is easy to cause white heads.
whether the eyes are bleak or not, Shaohua is easy to cause white heads.
2. No, and to deposit money in Macao, you must have an account in Macao's Bank, and you can only deposit money in Macao's account.
3. Overview
ASP is the abbreviation of active server page, which means "active server page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX components to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, which can prevent the ASP program code from being stolen<
the working principle of ASP
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is application service provider in English, and "application service provider" in Chinese, which refers to the company or enterprise that provides management application solutions for commercial or personal customers. Recently, ASP is very popular in the media. It's hard for people who are not in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. It has no essential difference from accounting office and marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main work and business tools, using a one to many way to provide enterprises and companies with standardized application software and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with solid foundation, which is favored by the global IT manufacturers and can promote the development of network economy
compared with traditional outsourcing, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the input of server, personnel, system, system authorization and other early resources, and such services are generally charged by ASP monthly
C. ASP adopts a centralized management mode -- ASP generally has a management center, and all customers can access remotely through Internet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, and the procts are customized to the lowest degree or have not been customized by customers, which has reached the practical and convenient standard for instry users
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement and ensures that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction, and greatly rece the cost of enterprise management informatization. Second, ASP users can obtain applications and services in various ways. Software service procts can form a perfect, efficient and advanced enterprise management system in a very short time through the network, and quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" for research, exchange and discussion of ASP technology. Now it has developed into chinaasp.com, becoming the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network, which serves domestic enterprises. It provides enterprises with e-commerce as the core, remote architecture and hosting services of internal and external network facilities and applications, creates virtual enterprise portal (EP) and directly applies ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies are especially fond of ASP. The latest news in the instry is that China third Telecom "Netcom" has formulated the ASP development strategy. The largest management consulting company in China "Hanpu" will position its eight subsidiaries in the ASP of enterprise internal resource planning management (ERP), Beijing "Liancheng interactive" will aim at the ASP of customer relationship management (CRM), and Beijing "digital Ark" will position itself in the ASP of network office, HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in the field of ASP according to their own advantages. At the present stage, the services provided by ASP are numerous and varied, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then it will enter the period of market refinement and standard formulation, and the maturity of ASP procts. The steady growth of ASP will eventually become the core of the business model of IT instry
at present, on the road of ASP development, the main problems are the change of concept: using leasing instead of purchasing, service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking, safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". About "5 202006", you can also make
ASP is the abbreviation of active server page, which means "active server page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX components to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, which can prevent the ASP program code from being stolen<
the working principle of ASP
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is application service provider in English, and "application service provider" in Chinese, which refers to the company or enterprise that provides management application solutions for commercial or personal customers. Recently, ASP is very popular in the media. It's hard for people who are not in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. It has no essential difference from accounting office and marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main work and business tools, using a one to many way to provide enterprises and companies with standardized application software and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with solid foundation, which is favored by the global IT manufacturers and can promote the development of network economy
compared with traditional outsourcing, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the input of server, personnel, system, system authorization and other early resources, and such services are generally charged by ASP monthly
C. ASP adopts a centralized management mode -- ASP generally has a management center, and all customers can access remotely through Internet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, and the procts are customized to the lowest degree or have not been customized by customers, which has reached the practical and convenient standard for instry users
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement and ensures that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction, and greatly rece the cost of enterprise management informatization. Second, ASP users can obtain applications and services in various ways. Software service procts can form a perfect, efficient and advanced enterprise management system in a very short time through the network, and quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" for research, exchange and discussion of ASP technology. Now it has developed into chinaasp.com, becoming the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network, which serves domestic enterprises. It provides enterprises with e-commerce as the core, remote architecture and hosting services of internal and external network facilities and applications, creates virtual enterprise portal (EP) and directly applies ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies are especially fond of ASP. The latest news in the instry is that China third Telecom "Netcom" has formulated the ASP development strategy. The largest management consulting company in China "Hanpu" will position its eight subsidiaries in the ASP of enterprise internal resource planning management (ERP), Beijing "Liancheng interactive" will aim at the ASP of customer relationship management (CRM), and Beijing "digital Ark" will position itself in the ASP of network office, HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in the field of ASP according to their own advantages. At the present stage, the services provided by ASP are numerous and varied, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then it will enter the period of market refinement and standard formulation, and the maturity of ASP procts. The steady growth of ASP will eventually become the core of the business model of IT instry
at present, on the road of ASP development, the main problems are the change of concept: using leasing instead of purchasing, service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking, safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". About "5 202006", you can also make
4. ASP common keywords
function name function function function
CBool (string) to Boolean value
cbyte (string) to byte type value
ccur (string) to currency type value
CDate (string) to date type value
cdbl (string) to double precision value
cint (string) to integer value
CLng (string) to long integer value
CS String (string) to single precision value
CSTR (VaR) to string value
str (VaR) value to string value
val (string) string to value
ABS (NMB) returns the absolute value of a number
ATN (NMB) returns the arctangent of a number
cos (NMB) returns the complementary value of an angle
exp (NMB) returns the natural index The power value of a number
int (NMB) returns the integer (carry) part of the number
fix (NMB) returns the integer (rounding) part of the number
formappercent (expression) returns the percentage
hex (NMB) returns the hexadecimal number of the data
log (NMB) returns the natural pair
OCT (NMB) returns the octal number of the number
RND returns the random number greater than "0" but less than "1"
SGN (NMB) judge the sign of a number
sin (NMB) returns the positive value of the angle
SQR (NMB) returns the square root of the number
Tan (NMB) returns the tangent value of a number
ASC (string) returns the ascii string
Chr (charcode) returns the character according to the character code
instr (string, searchstr) returns the first character position of the searched string, string is the string, Searchstr is the searched string
InStrRev (string, searchstr) is the same as above, but searches from the right side
lcase (VaR) changes the string to lowercase
left (string, NMB) returns NMB strings from the left side of the string
len (string) returns the length of the string
ltrim (string) truncates the space on the left side of the string
filter (inputstrings, Value) returns the character set of the string array, inputstrings is the string group, value is the character found in the array
rtrim (string) truncates the space on the right side of the string
trim (string) truncates the space before and after the string
mid (string, start, len) returns len characters starting from the start position in the string
replace (string, find, withstr) in the string, Replace the find string with withstr
right (string, NMB) returns the NMB strings from the right side of the string
space (NMB) returns the string with the specified space
strcomp (string1, string2) compares two strings
ucase (string) changes the string to uppercase
date() returns the current system date
DateAdd (interval, NMB, date) uses a base time to return the date with the specified time interval added. Interval is the interval type, yyyy year, m-month, D-Day, H-Hour, n-minute
DateDiff (interval, nmb1, nmb2) returns two time intervals, The meaning of interval is the same as above
DateValue (date)
day (date)
formatdatetime (date)
hour (time)
minute (time)
month (date)
now() returns the date and time of the system
second (time) The number of seconds in the return time
time() returns the current time of the system
weekday (date) returns the day of the week
WeekdayName (date) returns the Chinese name of the day of the week
year (date) returns the year
isarray (VaR) judges whether a variable is an array
IsDate (VaR) judges whether a variable is a date
isnull (VaR) judges whether a variable is empty
IsNumeric Judge whether the expression contains a value
isobject (VaR) judge whether a variable is an object
typename (VaR) return the data type of the variable
array (list) return the array
CreateObject (class) create an object
GetObject (pathfilename) get the file object
InputBox (prompt) provide an object for input data Dialog box
lbound (arrayp) returns the minimum index of the array
msgbox (string) outputs a message box
split (liststr) returns a one-dimensional array from a list string
unbound (array) returns the maximum index of the array
and
you can search online & quot; VBScript language reference & quot; It's a help file in chm format. You need to download it and have a look at it. It's full of functions and so on.
it's recommended that you install MSDN 6.0. I have to do it based on VB
this is what I wrote in 2006 and others copied it
function name function function function
CBool (string) to Boolean value
cbyte (string) to byte type value
ccur (string) to currency type value
CDate (string) to date type value
cdbl (string) to double precision value
cint (string) to integer value
CLng (string) to long integer value
CS String (string) to single precision value
CSTR (VaR) to string value
str (VaR) value to string value
val (string) string to value
ABS (NMB) returns the absolute value of a number
ATN (NMB) returns the arctangent of a number
cos (NMB) returns the complementary value of an angle
exp (NMB) returns the natural index The power value of a number
int (NMB) returns the integer (carry) part of the number
fix (NMB) returns the integer (rounding) part of the number
formappercent (expression) returns the percentage
hex (NMB) returns the hexadecimal number of the data
log (NMB) returns the natural pair
OCT (NMB) returns the octal number of the number
RND returns the random number greater than "0" but less than "1"
SGN (NMB) judge the sign of a number
sin (NMB) returns the positive value of the angle
SQR (NMB) returns the square root of the number
Tan (NMB) returns the tangent value of a number
ASC (string) returns the ascii string
Chr (charcode) returns the character according to the character code
instr (string, searchstr) returns the first character position of the searched string, string is the string, Searchstr is the searched string
InStrRev (string, searchstr) is the same as above, but searches from the right side
lcase (VaR) changes the string to lowercase
left (string, NMB) returns NMB strings from the left side of the string
len (string) returns the length of the string
ltrim (string) truncates the space on the left side of the string
filter (inputstrings, Value) returns the character set of the string array, inputstrings is the string group, value is the character found in the array
rtrim (string) truncates the space on the right side of the string
trim (string) truncates the space before and after the string
mid (string, start, len) returns len characters starting from the start position in the string
replace (string, find, withstr) in the string, Replace the find string with withstr
right (string, NMB) returns the NMB strings from the right side of the string
space (NMB) returns the string with the specified space
strcomp (string1, string2) compares two strings
ucase (string) changes the string to uppercase
date() returns the current system date
DateAdd (interval, NMB, date) uses a base time to return the date with the specified time interval added. Interval is the interval type, yyyy year, m-month, D-Day, H-Hour, n-minute
DateDiff (interval, nmb1, nmb2) returns two time intervals, The meaning of interval is the same as above
DateValue (date)
day (date)
formatdatetime (date)
hour (time)
minute (time)
month (date)
now() returns the date and time of the system
second (time) The number of seconds in the return time
time() returns the current time of the system
weekday (date) returns the day of the week
WeekdayName (date) returns the Chinese name of the day of the week
year (date) returns the year
isarray (VaR) judges whether a variable is an array
IsDate (VaR) judges whether a variable is a date
isnull (VaR) judges whether a variable is empty
IsNumeric Judge whether the expression contains a value
isobject (VaR) judge whether a variable is an object
typename (VaR) return the data type of the variable
array (list) return the array
CreateObject (class) create an object
GetObject (pathfilename) get the file object
InputBox (prompt) provide an object for input data Dialog box
lbound (arrayp) returns the minimum index of the array
msgbox (string) outputs a message box
split (liststr) returns a one-dimensional array from a list string
unbound (array) returns the maximum index of the array
and
you can search online & quot; VBScript language reference & quot; It's a help file in chm format. You need to download it and have a look at it. It's full of functions and so on.
it's recommended that you install MSDN 6.0. I have to do it based on VB
this is what I wrote in 2006 and others copied it
5. ASP is the abbreviation of active server page, which means "active server page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX component to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, and the ASP program code can be stolen< 1, ASP file is a kind of server-side dynamic script web page file. That is, the web page saved by ASP dynamic web page language that Microsoft company quits
-- > 2, ASP files can only be executed on the server supporting ASP. I'm talking about execution, not opening. For example, we visit a website:
http://www.abc.com/test.asp
can prove that the www.abc.com The website supports Microsoft ASP< Of course, if you have the original ASP file, you can open it to view the original code. There are many ways to open the original ASP file, I just say two of the simplest:
the first: the simplest. Open it in Notepad
right click the ASP file, select the open method, and then select Notepad to open it. When you open it, you'll see lines of code. If you know the ASP language, you can modify it
the second method is to use dreamwear, FontPage and other page editors supporting ASP
first open these web page editors, then select open, and then specify the ASP file. Of course, here we can also edit the original ASP file.
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX component to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, and the ASP program code can be stolen< 1, ASP file is a kind of server-side dynamic script web page file. That is, the web page saved by ASP dynamic web page language that Microsoft company quits
-- > 2, ASP files can only be executed on the server supporting ASP. I'm talking about execution, not opening. For example, we visit a website:
http://www.abc.com/test.asp
can prove that the www.abc.com The website supports Microsoft ASP< Of course, if you have the original ASP file, you can open it to view the original code. There are many ways to open the original ASP file, I just say two of the simplest:
the first: the simplest. Open it in Notepad
right click the ASP file, select the open method, and then select Notepad to open it. When you open it, you'll see lines of code. If you know the ASP language, you can modify it
the second method is to use dreamwear, FontPage and other page editors supporting ASP
first open these web page editors, then select open, and then specify the ASP file. Of course, here we can also edit the original ASP file.
6. Literally, ASP has three meanings:
1. Active: ASP uses Microsoft's ActiveX technology. ActiveX (COM) technology is an important foundation of Microsoft software. It uses the technology of encapsulating object and program calling object to simplify programming and strengthen cooperation between programs. ASP encapsulates some basic components and common components, and many companies have developed many practical components. As long as you can install these components on the server, you can quickly and easily build your own web application by accessing the components< Server: ASP runs on the server side. In this way, there is no need to worry about whether the browser supports the programming language used by ASP. ASP programming language can be VBScript and jsscript. VBScript is a simple set of VB, VB people can be very convenient to quickly start. However, Netscape browser does not support VBScript on the client side, so it is better not to use VBScript on the client side. On the server side, there is no need to consider the support of the browser. Netscape browser can also display ASP pages normally
3. Pages: ASP returns standard HTML pages, which can be displayed in common browsers normally. When the browser looks at the page source file, he will see the HTML code generated by ASP, not the ASP program code. This will prevent others from ing the program
from this we can see that ASP is a simple and convenient programming tool for developing web applications under IIS. After understanding the basic syntax of VBScript, you can easily write your own ASP system by knowing the purpose, attribute and method of each component< What can ASP do
ASP is a programming technology based on Web, which can be said to be a kind of CGI. It can complete all the functions of previous CGI programs, such as counter, message book, bulletin board, chat room and so on. ASP can easily realize the dynamic control of page content, and display different page content according to different visitors. And the viewer is not aware of it, just like the page specially made for him. Using a variety of components, ASP can complete extremely powerful functions. Using the file system object, you can operate, browse, , move and delete the files on the server. With the support of ADO (active database object), ASP is very handy in database operation. You can even use the local database to manage the database on the remote host and perform various operations on tables and records. Using CDONTS (collaboration data objects for NTS), you can send and view e-mail, and realize the function of Webmail. Combined with WSH (Windows scripting host), it can realize the management of NT host, such as NT user management, IIS virtual host settings, exchange mailbox settings and so on, which is as convenient as managing local machine.
1. Active: ASP uses Microsoft's ActiveX technology. ActiveX (COM) technology is an important foundation of Microsoft software. It uses the technology of encapsulating object and program calling object to simplify programming and strengthen cooperation between programs. ASP encapsulates some basic components and common components, and many companies have developed many practical components. As long as you can install these components on the server, you can quickly and easily build your own web application by accessing the components< Server: ASP runs on the server side. In this way, there is no need to worry about whether the browser supports the programming language used by ASP. ASP programming language can be VBScript and jsscript. VBScript is a simple set of VB, VB people can be very convenient to quickly start. However, Netscape browser does not support VBScript on the client side, so it is better not to use VBScript on the client side. On the server side, there is no need to consider the support of the browser. Netscape browser can also display ASP pages normally
3. Pages: ASP returns standard HTML pages, which can be displayed in common browsers normally. When the browser looks at the page source file, he will see the HTML code generated by ASP, not the ASP program code. This will prevent others from ing the program
from this we can see that ASP is a simple and convenient programming tool for developing web applications under IIS. After understanding the basic syntax of VBScript, you can easily write your own ASP system by knowing the purpose, attribute and method of each component< What can ASP do
ASP is a programming technology based on Web, which can be said to be a kind of CGI. It can complete all the functions of previous CGI programs, such as counter, message book, bulletin board, chat room and so on. ASP can easily realize the dynamic control of page content, and display different page content according to different visitors. And the viewer is not aware of it, just like the page specially made for him. Using a variety of components, ASP can complete extremely powerful functions. Using the file system object, you can operate, browse, , move and delete the files on the server. With the support of ADO (active database object), ASP is very handy in database operation. You can even use the local database to manage the database on the remote host and perform various operations on tables and records. Using CDONTS (collaboration data objects for NTS), you can send and view e-mail, and realize the function of Webmail. Combined with WSH (Windows scripting host), it can realize the management of NT host, such as NT user management, IIS virtual host settings, exchange mailbox settings and so on, which is as convenient as managing local machine.
7. 1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. There is no essential difference between ASP and accounting office or marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main
work and business tools, using a one to many way to provide enterprises and companies with standardized application software to
and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with a solid foundation, which is favored by the major IT manufacturers all over the world and can promote the development of network economy< Compared with the traditional outsourcing service, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the prior resource investment of server, personnel, system and system authorization, and such services are generally charged by ASP monthly
C. ASP adopts the way of centralized management -- ASP generally has a management center, and all customers can access remotely through inte
rnet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, procts are the lowest degree of
customization or do not achieve customer customization, for instry users, it has reached the practical and convenient standard
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement
to ensure that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction and greatly rece the cost of enterprise management informatization. Second, users of ASP can obtain applications and services in various ways, and software service procts can be organized into a perfect, efficient and advanced enterprise management system in a very short time through the network, so as to quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" to research, exchange and discuss ASP technology. Now it has developed into chinaasp.com and become the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network for domestic enterprises, providing enterprises with remote architecture and hosting services of internal and external network facilities and applications with e-commerce as the core, creating a virtual enterprise portal (EP
) to directly apply ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies have a special preference for ASP. The latest news in the instry is that China Netcom, the third Telecom, has formulated the ASP development strategy,
Hanpu, the largest management consulting company in China, will position its eight subsidiaries in the ASP in the field of enterprise internal resource planning (ERP), and Beijing Liancheng interactive will aim at a
SP in the field of customer relationship management (CRM), Beijing "digital Ark" is positioned as ASP in network office. HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in ASP field according to their own advantages. At the present stage, there are countless services provided by ASP, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then, when the market is refined and standards are formulated and ASP procts are mature, the steady growth of ASP will eventually become the core of the business model of IT instry<
at present, the main problems in the development of ASP are the change of concept: using leasing instead of purchasing,
service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking,
safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high
technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". "5 202006" can also be expressed in the form of "5-20-2006" and "5 / 20 / 2006", that is, the combination of "a month, a day" and "a year". At the same time, pay attention to use "#" to indicate the date value
(5) month function: returns an integer value between 1 and 12, indicating a month in a year. Usage: month (date). The description of the parameter date is the same as that of the year function. But we should pay attention to the correctness of the date, such as "13-31-2006", there is no "13" month at all, it must be wrong
(6) day function: returns an integer value between 1 and 31, indicating a day in a month. Usage: Day (date). The description of the parameter date is the same as that of the year function. Also pay attention to the correctness of the date, such as "2-30-2006", in which the definition of "30" day of "February" is wrong
(7) hour function: returns an integer value between 0 and 23, representing an hour of the day. Usage: hour (time). The parameter time is any expression that can represent time. For example, "hour (time ())" means to extract the integer of "hour" from the time obtained by "time ()". Similarly, the parameter time can also be applied like this: "hour (# 11:45:50 #)" to extract the current hours from "45" minutes "and" 50 "seconds at" 11 ". Of course, the definition of time should conform to the norms of time
(8) minute function: returns an integer value between 0 and 59, indicating a minute in an hour. Usage: minute (time). The description of the time parameter is the same as that of the hour function
(9) second function: returns an integer value between 0 and 59, indicating a second in a minute. Usage: second (time). The description of the time parameter is the same as that of the hour function
(10) weekday function: returns the integer of a day in a week. Usage: weekday (date). The description of the parameter date is the same as that of the year function. The return values of this function are "1" to "7", representing "Sunday", "Monday"... "Saturday" respectively. For example, when the return value is "4", it means "Wednesday"
(11) WeekdayName function: returns the string of a specific day in a week. Relative to weekday function, it translates "day of the week". Usage: WeekdayName (weekday). The parameter weekday is the value of a specific day of the week. For example, "weekday name (weekday (date ()))" means the current day of the week. Because "date ()" represents the current time, while "weekday (date ())" represents the integer of a specific day in a week
of course, the string content displayed by the WeekdayName function is also related to the language family of the current operating system. For example, the Chinese operating system will display Chinese characters such as "Monday", while the English operating system will display "mon"< In addition, there are some calculation functions about time interval in VBScript:
(1) DateAdd function: returns the date and time of the specified time interval. You can calculate how many years, months, hours and other new dates and times are separated. Usage: DateAdd (interval, number, date)
the parameter interval indicates the time interval unit to be added. It is expressed in the form of string, for example, "yyyy" represents the year, "Q" represents the quarter, "m" represents the month, "d" represents the days, "WW" represents the number of weeks, "H" represents the number of hours, "n" represents the number of minutes, "s" represents the number of seconds
the parameter number indicates the number of time intervals added. It is expressed numerically and can be negative. The parameter date should be in the correct format of date and time
for example, DateAdd & quote; d", 100," 2006-5-20") It means the date value of 100 days after May 20, 2006: 2006-8-28. Another example is DateAdd; h",- 12," 2005-5-20 10:00:00") It means 12 hours before 10:00 a.m. on May 20, 2005
(2) DateDiff function: returns the interval between two date times. The time and hours between two dates can be calculated. Usage: DateDiff (interval, date1, date2)
parameter interval and interval in DateAdd function
simply speaking, ASP is a service provider that provides services for customers. There is no essential difference between ASP and accounting office or marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main
work and business tools, using a one to many way to provide enterprises and companies with standardized application software to
and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with a solid foundation, which is favored by the major IT manufacturers all over the world and can promote the development of network economy< Compared with the traditional outsourcing service, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the prior resource investment of server, personnel, system and system authorization, and such services are generally charged by ASP monthly
C. ASP adopts the way of centralized management -- ASP generally has a management center, and all customers can access remotely through inte
rnet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, procts are the lowest degree of
customization or do not achieve customer customization, for instry users, it has reached the practical and convenient standard
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement
to ensure that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction and greatly rece the cost of enterprise management informatization. Second, users of ASP can obtain applications and services in various ways, and software service procts can be organized into a perfect, efficient and advanced enterprise management system in a very short time through the network, so as to quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" to research, exchange and discuss ASP technology. Now it has developed into chinaasp.com and become the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network for domestic enterprises, providing enterprises with remote architecture and hosting services of internal and external network facilities and applications with e-commerce as the core, creating a virtual enterprise portal (EP
) to directly apply ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies have a special preference for ASP. The latest news in the instry is that China Netcom, the third Telecom, has formulated the ASP development strategy,
Hanpu, the largest management consulting company in China, will position its eight subsidiaries in the ASP in the field of enterprise internal resource planning (ERP), and Beijing Liancheng interactive will aim at a
SP in the field of customer relationship management (CRM), Beijing "digital Ark" is positioned as ASP in network office. HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in ASP field according to their own advantages. At the present stage, there are countless services provided by ASP, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then, when the market is refined and standards are formulated and ASP procts are mature, the steady growth of ASP will eventually become the core of the business model of IT instry<
at present, the main problems in the development of ASP are the change of concept: using leasing instead of purchasing,
service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking,
safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high
technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". "5 202006" can also be expressed in the form of "5-20-2006" and "5 / 20 / 2006", that is, the combination of "a month, a day" and "a year". At the same time, pay attention to use "#" to indicate the date value
(5) month function: returns an integer value between 1 and 12, indicating a month in a year. Usage: month (date). The description of the parameter date is the same as that of the year function. But we should pay attention to the correctness of the date, such as "13-31-2006", there is no "13" month at all, it must be wrong
(6) day function: returns an integer value between 1 and 31, indicating a day in a month. Usage: Day (date). The description of the parameter date is the same as that of the year function. Also pay attention to the correctness of the date, such as "2-30-2006", in which the definition of "30" day of "February" is wrong
(7) hour function: returns an integer value between 0 and 23, representing an hour of the day. Usage: hour (time). The parameter time is any expression that can represent time. For example, "hour (time ())" means to extract the integer of "hour" from the time obtained by "time ()". Similarly, the parameter time can also be applied like this: "hour (# 11:45:50 #)" to extract the current hours from "45" minutes "and" 50 "seconds at" 11 ". Of course, the definition of time should conform to the norms of time
(8) minute function: returns an integer value between 0 and 59, indicating a minute in an hour. Usage: minute (time). The description of the time parameter is the same as that of the hour function
(9) second function: returns an integer value between 0 and 59, indicating a second in a minute. Usage: second (time). The description of the time parameter is the same as that of the hour function
(10) weekday function: returns the integer of a day in a week. Usage: weekday (date). The description of the parameter date is the same as that of the year function. The return values of this function are "1" to "7", representing "Sunday", "Monday"... "Saturday" respectively. For example, when the return value is "4", it means "Wednesday"
(11) WeekdayName function: returns the string of a specific day in a week. Relative to weekday function, it translates "day of the week". Usage: WeekdayName (weekday). The parameter weekday is the value of a specific day of the week. For example, "weekday name (weekday (date ()))" means the current day of the week. Because "date ()" represents the current time, while "weekday (date ())" represents the integer of a specific day in a week
of course, the string content displayed by the WeekdayName function is also related to the language family of the current operating system. For example, the Chinese operating system will display Chinese characters such as "Monday", while the English operating system will display "mon"< In addition, there are some calculation functions about time interval in VBScript:
(1) DateAdd function: returns the date and time of the specified time interval. You can calculate how many years, months, hours and other new dates and times are separated. Usage: DateAdd (interval, number, date)
the parameter interval indicates the time interval unit to be added. It is expressed in the form of string, for example, "yyyy" represents the year, "Q" represents the quarter, "m" represents the month, "d" represents the days, "WW" represents the number of weeks, "H" represents the number of hours, "n" represents the number of minutes, "s" represents the number of seconds
the parameter number indicates the number of time intervals added. It is expressed numerically and can be negative. The parameter date should be in the correct format of date and time
for example, DateAdd & quote; d", 100," 2006-5-20") It means the date value of 100 days after May 20, 2006: 2006-8-28. Another example is DateAdd; h",- 12," 2005-5-20 10:00:00") It means 12 hours before 10:00 a.m. on May 20, 2005
(2) DateDiff function: returns the interval between two date times. The time and hours between two dates can be calculated. Usage: DateDiff (interval, date1, date2)
parameter interval and interval in DateAdd function
8. Note: the article is divided into two parts, the present situation and future of computer
computer development and present situation
computer network is the proct of the close combination of computer technology and communication technology, it involves two fields of communication and computer. Its birth has made great changes in the computer architecture, which plays a very important role in today's social economy. It has made great contributions to the progress of human society. In a sense, the development level of computer network not only reflects the level of a country's computer science and communication technology, but also has become one of the important symbols to measure its national strength and modernization< Since the 1950s, people and various organizations have been using computers to manage their information at a rapid rate. In the early days, limited by the technical conditions, the computers at that time were very large and expensive. No organization could provide employees with the whole computer. The host must be shared, which was used to store and organize data, centralized control and manage the whole system. All users have terminal equipment to connect the system, input the database into the host for processing, or take out the processing results from the host through the centralized control output device. Its most typical characteristics are: most of the communication processes are formed through the host system, all the communication protocols that constitute the system are system specific, the mainframe occupies an absolute dominant role in the system, and all the control and management functions are completed by the host
with the continuous development of computer technology, especially the emergence of a large number of advanced personal computers, everyone can completely control his own computer and carry out the job processing he wants. The computing power presented in the form of personal computer (PC) has developed into an independent platform, leading to the birth of a new computing structure - distributed computing mode< Generally speaking, the development of computer network can be divided into four stages:
the first stage is the combination of computer technology and communication technology to form the rudiment of computer network
the second stage: Based on the computer communication network, complete the research of network architecture and protocol, and form the computer network
the third stage: under the background of solving the problem of standardization of computer networking and network interconnection, the open system interconnection reference model and protocol are proposed, which promotes the development of computer network technology in line with international standards
the fourth stage: the development of computer network towards interconnection, high-speed, intelligent direction, and widely used
the emergence of any new technology must have two conditions: strong social demand and the maturity of advanced technology. The formation and development of computer network technology also confirmed this rule. When ENIAC, the first electronic digital computer in the world, was born in the United States in 1946, there was no direct connection between computer technology and communication technology. In the early 1950s, e to the needs of the U.S. military, sage, a semi-automatic ground air defense system, tried to combine computer technology with communication technology. To achieve this goal, we must first complete the basic research of data communication technology. On the basis of this research, people can connect multiple terminal communication lines which are geographically dispersed to a central computer. Users can type programs in their own office terminals and transmit them to the central computer through communication lines. People call this single centered online system terminal oriented remote online system. It is a kind of computer communication network. Sabre-1, an airline booking system built by American Airlines in the early 1960s, consists of a computer and more than 2000 terminals distributed in the United States
with the development of computer applications, there is a need for interconnection of multiple computers. This demand mainly comes from the military, scientific research, regional and national economic information analysis and decision-making, large enterprise management. They hope to connect computers distributed in different places through communication lines to form a computer computer network. Network users can use the local computer software, hardware and data resources through the computer, and can also use the computer software, hardware and data resources of other places connected to the network, so as to achieve the purpose of computer resource sharing. The typical representative of this stage of research is ARPANET (commonly known as ARPANET) of Advanced Research Projects Agency (ARPA). ARPA network had only 4 nodes in 1969, 40 nodes in 1973 and more than 100 nodes in 1983. ARPA network covers a wide area from the United States to Europe and Hawaii through wired, wireless and satellite communication lines. ARPR network is an important milestone in the development of computer network technology. Its main contribution to the development of computer network technology is shown in the following aspects:
1
2. The concept of two-level network structure of resource subnet and communication subnet is proposed
3
4. Hierarchical network architecture model and protocol architecture are adopted<
computer and computer technology in the future
the key technology of computer will continue to develop
the future computer technology will develop in the direction of ultra-high speed, ultra miniaturization, parallel processing and intelligence. Although constrained by physical limits, the performance of CPU, the core component of computer with silicon chip, will continue to grow. As a model of a successful enterprise driven by Moore's law, inter is expected to launch a microprocessor with 100 million transistors in 2001 and a microprocessor with 1 billion transistors in 2010, with a performance of 100000 MIPS (100 billion instructions per second). The supercomputer of 100 trillion times per second will appear at the beginning of this century. Super high speed computer will adopt parallel processing technology to make computer system execute multiple instructions or process multiple data at the same time, which is the key technology to improve computer structure and speed
at the same time, computers will have more intelligent components, which will have a variety of perception ability, certain thinking and judgment ability and certain natural language ability. In addition to providing natural input means (such as voice input and handwriting input), various interactive devices that can make people feel immersive have emerged. Virtual reality technology is the concentrated embodiment of the development in this field
the storage capacity of traditional magnetic storage and optical disk continues to rise, and the new mass storage technology is becoming mature. The storage capacity of the new type of memory can reach 10TB per cubic centimeter (it can store about 15 million books in 300000 words per book). Permanent storage of information will also become a reality. Millennium memory is under development. Such memory can resist interference, high temperature, shock, water and corrosion. In this way, a large number of documents today can be preserved in their original flavor and will be immortal< The rapid development of silicon chip technology also means that silicon technology is getting closer and closer to its physical limit. Therefore, researchers all over the world are stepping up research and development of new computers. From the transformation of computer architecture to the revolution of devices and technology, computers will have a quantitative and even qualitative leap. New quantum computers, photonic computers, biological computers, nano computers, etc. will come into our lives in the 21st century, all over the field
quantum computer
quantum computer is developed on the basis of quantum effect. It uses the properties of a chain molecular polymer to express the on-off state, and uses laser pulses to change the state of the molecule, so that the information moves along the polymer, so as to carry out operations
in quantum computers, data are stored in qubits. Because of the quantum superposition effect, a qubit can be 0 or 1, or it can store both 0 and 1. Therefore, one qubit can store two data. For the same number of qubits, the storage capacity of quantum computer is much larger than that of ordinary computer. At the same time, quantum computer can implement quantum parallel computing, and its computing speed may be 1 billion times faster than the Pentium III chip of personal computer. At present, there are three types of quantum computers under development: nuclear magnetic resonance (NMR) quantum computer, silicon-based semiconctor quantum computer and ion trap quantum computer. Quantum computers are expected to be universal by 2030< Photonic computer is an all-optical digital computer, which uses photons instead of electrons, optical interconnection instead of wire interconnection, optical hardware instead of electronic hardware, and optical operation instead of electric operation
compared with the electronic computer, the density of information transmission parallel channel of optical computer is very high. A prism the size of a nickel in diameter has many times the capacity of existing telephone cables around the world. The parallel and high speed of light naturally determines that the parallel processing ability of optical computer is very strong and it has super high speed. Ultra high speed electronic computer can only work at low temperature, while optical computer can work at room temperature. Optical computers also have fault tolerance similar to human brains. When a component in the system is damaged or wrong, the final calculation result will not be affected
at present, the first optical computer in the world has been successfully developed by more than 70 scientists from Britain, France, Belgium, Germany and Italy of the European community. Its computing speed is 1000 times faster than that of electronic computers. Scientists predict that the further development of optical computers will become one of the high-tech topics in the 21st century
biological computer (molecular computer)
the operation process of biological computer is the interaction process between protein molecules and surrounding physical and chemical media. The computer's switch is made up of enzymes, and the program is clearly shown in the enzyme synthesis system itself and the structure of protein
in the 1970s, it was found that DNA in different states can represent the presence or absence of information. The genetic code in DNA molecule is equivalent to the stored data. Through biochemical reaction, DNA molecules change from one gene code to another gene code. The gene code before reaction is equivalent to input data, and the gene code after reaction is equivalent to output data. If we can control this reaction process, we can make a DNA computer successfully
protein molecules are much smaller than the electronic components on silicon chips, and they are very close to each other. It takes only 10 picoseconds for a biological computer to complete an operation, which is one million times faster than the speed of human thinking. DNA molecular computer has amazing storage capacity. One cubic meter of DNA solution can store 1 trillion binary data. DNA computers consume very little energy, one billionth of that of electronic computers. Because the raw material of biochip is protein molecule, biological computer not only has the function of self-healing, but also can be directly connected with living organisms. It is expected that the DNA computer will enter the practical stage in 10-20 years
nano computer
a "nano" is a unit of measurement. A nano is equal to 10 [- 9] meters, which is about 10 times the diameter of hydrogen atom. Nanotechnology is a new frontier scientific research field developed rapidly from the early 1980s. The ultimate goal is that human beings directly manipulate indivial atoms according to their own will
computer development and present situation
computer network is the proct of the close combination of computer technology and communication technology, it involves two fields of communication and computer. Its birth has made great changes in the computer architecture, which plays a very important role in today's social economy. It has made great contributions to the progress of human society. In a sense, the development level of computer network not only reflects the level of a country's computer science and communication technology, but also has become one of the important symbols to measure its national strength and modernization< Since the 1950s, people and various organizations have been using computers to manage their information at a rapid rate. In the early days, limited by the technical conditions, the computers at that time were very large and expensive. No organization could provide employees with the whole computer. The host must be shared, which was used to store and organize data, centralized control and manage the whole system. All users have terminal equipment to connect the system, input the database into the host for processing, or take out the processing results from the host through the centralized control output device. Its most typical characteristics are: most of the communication processes are formed through the host system, all the communication protocols that constitute the system are system specific, the mainframe occupies an absolute dominant role in the system, and all the control and management functions are completed by the host
with the continuous development of computer technology, especially the emergence of a large number of advanced personal computers, everyone can completely control his own computer and carry out the job processing he wants. The computing power presented in the form of personal computer (PC) has developed into an independent platform, leading to the birth of a new computing structure - distributed computing mode< Generally speaking, the development of computer network can be divided into four stages:
the first stage is the combination of computer technology and communication technology to form the rudiment of computer network
the second stage: Based on the computer communication network, complete the research of network architecture and protocol, and form the computer network
the third stage: under the background of solving the problem of standardization of computer networking and network interconnection, the open system interconnection reference model and protocol are proposed, which promotes the development of computer network technology in line with international standards
the fourth stage: the development of computer network towards interconnection, high-speed, intelligent direction, and widely used
the emergence of any new technology must have two conditions: strong social demand and the maturity of advanced technology. The formation and development of computer network technology also confirmed this rule. When ENIAC, the first electronic digital computer in the world, was born in the United States in 1946, there was no direct connection between computer technology and communication technology. In the early 1950s, e to the needs of the U.S. military, sage, a semi-automatic ground air defense system, tried to combine computer technology with communication technology. To achieve this goal, we must first complete the basic research of data communication technology. On the basis of this research, people can connect multiple terminal communication lines which are geographically dispersed to a central computer. Users can type programs in their own office terminals and transmit them to the central computer through communication lines. People call this single centered online system terminal oriented remote online system. It is a kind of computer communication network. Sabre-1, an airline booking system built by American Airlines in the early 1960s, consists of a computer and more than 2000 terminals distributed in the United States
with the development of computer applications, there is a need for interconnection of multiple computers. This demand mainly comes from the military, scientific research, regional and national economic information analysis and decision-making, large enterprise management. They hope to connect computers distributed in different places through communication lines to form a computer computer network. Network users can use the local computer software, hardware and data resources through the computer, and can also use the computer software, hardware and data resources of other places connected to the network, so as to achieve the purpose of computer resource sharing. The typical representative of this stage of research is ARPANET (commonly known as ARPANET) of Advanced Research Projects Agency (ARPA). ARPA network had only 4 nodes in 1969, 40 nodes in 1973 and more than 100 nodes in 1983. ARPA network covers a wide area from the United States to Europe and Hawaii through wired, wireless and satellite communication lines. ARPR network is an important milestone in the development of computer network technology. Its main contribution to the development of computer network technology is shown in the following aspects:
1
2. The concept of two-level network structure of resource subnet and communication subnet is proposed
3
4. Hierarchical network architecture model and protocol architecture are adopted<
computer and computer technology in the future
the key technology of computer will continue to develop
the future computer technology will develop in the direction of ultra-high speed, ultra miniaturization, parallel processing and intelligence. Although constrained by physical limits, the performance of CPU, the core component of computer with silicon chip, will continue to grow. As a model of a successful enterprise driven by Moore's law, inter is expected to launch a microprocessor with 100 million transistors in 2001 and a microprocessor with 1 billion transistors in 2010, with a performance of 100000 MIPS (100 billion instructions per second). The supercomputer of 100 trillion times per second will appear at the beginning of this century. Super high speed computer will adopt parallel processing technology to make computer system execute multiple instructions or process multiple data at the same time, which is the key technology to improve computer structure and speed
at the same time, computers will have more intelligent components, which will have a variety of perception ability, certain thinking and judgment ability and certain natural language ability. In addition to providing natural input means (such as voice input and handwriting input), various interactive devices that can make people feel immersive have emerged. Virtual reality technology is the concentrated embodiment of the development in this field
the storage capacity of traditional magnetic storage and optical disk continues to rise, and the new mass storage technology is becoming mature. The storage capacity of the new type of memory can reach 10TB per cubic centimeter (it can store about 15 million books in 300000 words per book). Permanent storage of information will also become a reality. Millennium memory is under development. Such memory can resist interference, high temperature, shock, water and corrosion. In this way, a large number of documents today can be preserved in their original flavor and will be immortal< The rapid development of silicon chip technology also means that silicon technology is getting closer and closer to its physical limit. Therefore, researchers all over the world are stepping up research and development of new computers. From the transformation of computer architecture to the revolution of devices and technology, computers will have a quantitative and even qualitative leap. New quantum computers, photonic computers, biological computers, nano computers, etc. will come into our lives in the 21st century, all over the field
quantum computer
quantum computer is developed on the basis of quantum effect. It uses the properties of a chain molecular polymer to express the on-off state, and uses laser pulses to change the state of the molecule, so that the information moves along the polymer, so as to carry out operations
in quantum computers, data are stored in qubits. Because of the quantum superposition effect, a qubit can be 0 or 1, or it can store both 0 and 1. Therefore, one qubit can store two data. For the same number of qubits, the storage capacity of quantum computer is much larger than that of ordinary computer. At the same time, quantum computer can implement quantum parallel computing, and its computing speed may be 1 billion times faster than the Pentium III chip of personal computer. At present, there are three types of quantum computers under development: nuclear magnetic resonance (NMR) quantum computer, silicon-based semiconctor quantum computer and ion trap quantum computer. Quantum computers are expected to be universal by 2030< Photonic computer is an all-optical digital computer, which uses photons instead of electrons, optical interconnection instead of wire interconnection, optical hardware instead of electronic hardware, and optical operation instead of electric operation
compared with the electronic computer, the density of information transmission parallel channel of optical computer is very high. A prism the size of a nickel in diameter has many times the capacity of existing telephone cables around the world. The parallel and high speed of light naturally determines that the parallel processing ability of optical computer is very strong and it has super high speed. Ultra high speed electronic computer can only work at low temperature, while optical computer can work at room temperature. Optical computers also have fault tolerance similar to human brains. When a component in the system is damaged or wrong, the final calculation result will not be affected
at present, the first optical computer in the world has been successfully developed by more than 70 scientists from Britain, France, Belgium, Germany and Italy of the European community. Its computing speed is 1000 times faster than that of electronic computers. Scientists predict that the further development of optical computers will become one of the high-tech topics in the 21st century
biological computer (molecular computer)
the operation process of biological computer is the interaction process between protein molecules and surrounding physical and chemical media. The computer's switch is made up of enzymes, and the program is clearly shown in the enzyme synthesis system itself and the structure of protein
in the 1970s, it was found that DNA in different states can represent the presence or absence of information. The genetic code in DNA molecule is equivalent to the stored data. Through biochemical reaction, DNA molecules change from one gene code to another gene code. The gene code before reaction is equivalent to input data, and the gene code after reaction is equivalent to output data. If we can control this reaction process, we can make a DNA computer successfully
protein molecules are much smaller than the electronic components on silicon chips, and they are very close to each other. It takes only 10 picoseconds for a biological computer to complete an operation, which is one million times faster than the speed of human thinking. DNA molecular computer has amazing storage capacity. One cubic meter of DNA solution can store 1 trillion binary data. DNA computers consume very little energy, one billionth of that of electronic computers. Because the raw material of biochip is protein molecule, biological computer not only has the function of self-healing, but also can be directly connected with living organisms. It is expected that the DNA computer will enter the practical stage in 10-20 years
nano computer
a "nano" is a unit of measurement. A nano is equal to 10 [- 9] meters, which is about 10 times the diameter of hydrogen atom. Nanotechnology is a new frontier scientific research field developed rapidly from the early 1980s. The ultimate goal is that human beings directly manipulate indivial atoms according to their own will
9. ASP is the abbreviation of active server page, which means "dynamic server home page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX components to perform a variety of tasks, such as accessing database, discovering email, accessing file system, etc
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, which can prevent the ASP program code from being stolen<
the working principle of ASP
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is application service provider in English, and "application service provider" in Chinese, which refers to the company or enterprise that provides management application solutions for commercial or personal customers. Recently, ASP is very popular in the media. It's hard for people who are not in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. It has no essential difference from accounting office and marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main work and business tools, using a one to many way to provide enterprises and companies with standardized application software and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with solid foundation, which is favored by the global IT manufacturers and can promote the development of network economy
compared with traditional outsourcing, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the input of server, personnel, system, system authorization and other early resources, and such services are generally charged by ASP monthly
C. ASP adopts a centralized management mode -- ASP generally has a management center, and all customers can access remotely through Internet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, and the procts are customized to the lowest degree or have not been customized by customers, which has reached the practical and convenient standard for instry users
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement and ensures that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction, and greatly rece the cost of enterprise management informatization. Second, ASP users can obtain applications and services in various ways. Software service procts can form a perfect, efficient and advanced enterprise management system in a very short time through the network, and quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" for research, exchange and discussion of ASP technology. Now it has developed into chinaasp.com, becoming the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network, which serves domestic enterprises. It provides enterprises with e-commerce as the core, remote architecture and hosting services of internal and external network facilities and applications, creates virtual enterprise portal (EP) and directly applies ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies are especially fond of ASP. The latest news in the instry is that China third Telecom "Netcom" has formulated the ASP development strategy. The largest management consulting company in China "Hanpu" will position its eight subsidiaries in the ASP of enterprise internal resource planning management (ERP), Beijing "Liancheng interactive" will aim at the ASP of customer relationship management (CRM), and Beijing "digital Ark" will position itself in the ASP of network office, HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in the field of ASP according to their own advantages. At the present stage, the services provided by ASP are numerous and varied, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then it will enter the period of market refinement and standard formulation, and the maturity of ASP procts. The steady growth of ASP will eventually become the core of the business model of IT instry
at present, on the road of ASP development, the main problems are the change of concept: using leasing instead of purchasing, service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking, safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". For "5 202006", you can also use "5-20-2006", "5 / 20 / 20"
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX components to perform a variety of tasks, such as accessing database, discovering email, accessing file system, etc
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, which can prevent the ASP program code from being stolen<
the working principle of ASP
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is application service provider in English, and "application service provider" in Chinese, which refers to the company or enterprise that provides management application solutions for commercial or personal customers. Recently, ASP is very popular in the media. It's hard for people who are not in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. It has no essential difference from accounting office and marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main work and business tools, using a one to many way to provide enterprises and companies with standardized application software and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with solid foundation, which is favored by the global IT manufacturers and can promote the development of network economy
compared with traditional outsourcing, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the input of server, personnel, system, system authorization and other early resources, and such services are generally charged by ASP monthly
C. ASP adopts a centralized management mode -- ASP generally has a management center, and all customers can access remotely through Internet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, and the procts are customized to the lowest degree or have not been customized by customers, which has reached the practical and convenient standard for instry users
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement and ensures that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction, and greatly rece the cost of enterprise management informatization. Second, ASP users can obtain applications and services in various ways. Software service procts can form a perfect, efficient and advanced enterprise management system in a very short time through the network, and quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" for research, exchange and discussion of ASP technology. Now it has developed into chinaasp.com, becoming the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network, which serves domestic enterprises. It provides enterprises with e-commerce as the core, remote architecture and hosting services of internal and external network facilities and applications, creates virtual enterprise portal (EP) and directly applies ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies are especially fond of ASP. The latest news in the instry is that China third Telecom "Netcom" has formulated the ASP development strategy. The largest management consulting company in China "Hanpu" will position its eight subsidiaries in the ASP of enterprise internal resource planning management (ERP), Beijing "Liancheng interactive" will aim at the ASP of customer relationship management (CRM), and Beijing "digital Ark" will position itself in the ASP of network office, HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in the field of ASP according to their own advantages. At the present stage, the services provided by ASP are numerous and varied, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then it will enter the period of market refinement and standard formulation, and the maturity of ASP procts. The steady growth of ASP will eventually become the core of the business model of IT instry
at present, on the road of ASP development, the main problems are the change of concept: using leasing instead of purchasing, service integration instead of proct distributors, service economy instead of proct economy and so on. Specifically speaking, safety and service quality are the top priority of ASP and customers. ASP has a long way to go to realize the slogan of "leasing high technology" put forward by ASP< These functions include the display of "year", "month", "day", "hour", "minute", "second" and "week"
(1) now function: returns the current date and time value according to the date and time set by the computer system. How to use now ()
(2) date function: returns only the date value set by the current computer system. Usage: date()
(3) time function: only returns the time value set by the current computer system. Usage: time ()
(4) year function: returns an integer representing a year. Usage: year (date), where the date parameter is any parameter that can represent the date. For example, "year (date ())" means to extract the integer of "year" from the date obtained from "date ()"
in addition, it can be applied as follows: "year (# 5, 202006 #)" means to extract the integer value of "year" in "May 20, 2006". For "5 202006", you can also use "5-20-2006", "5 / 20 / 20"
10. ASP
abbr.
1. = active server page [network] dynamic server web page
2. = application service provider [network] application service provider
3. = access service provider [network] access service provider
4. = advanced service platform advanced service platform
5. = advanced signal processor Level signal processor
6. = advanced sterilization procts (proced by Johnson & Johnson company in USA)
7. = advanced study program advanced learning program
8. = advanced system planning advanced system planning
9. = American selling price in USA
10. = Application Service Protocols
ASP
abbr.
1. = American selling price, American selling price
Asp1
KK: []
DJ: []
n.
1
KK: []
DJ: []
[poem] = Aspen
ASP is the abbreviation of active server page, which means "active server page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX component to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, and the ASP program code can be stolen<
working principle of ASP:
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is the application service provider in English, and the Chinese standard translation is "application service provider", which refers to the company or enterprise that provides management application solutions for commercial or indivial customers. Recently,
ASP has been very popular in the media. It is difficult for people in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. There is no essential difference between ASP and accounting office or marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main
work and business tools, using a one to many way to provide enterprises and companies with standardized application software to
and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with a solid foundation, which is favored by the major IT manufacturers all over the world and can promote the development of network economy< Compared with the traditional outsourcing service, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the prior resource investment of server, personnel, system and system authorization, and such services are generally charged by ASP monthly
C. ASP adopts the way of centralized management -- ASP generally has a management center, and all customers can access remotely through inte
rnet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, procts are the lowest degree of
customization or do not achieve customer customization, for instry users, it has reached the practical and convenient standard
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement
to ensure that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction and greatly rece the cost of enterprise management informatization. Second, users of ASP can obtain applications and services in various ways, and software service procts can be organized into a perfect, efficient and advanced enterprise management system in a very short time through the network, so as to quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" to research, exchange and discuss ASP technology. Now it has developed into chinaasp.com and become the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network for domestic enterprises, providing enterprises with remote architecture and hosting services of internal and external network facilities and applications with e-commerce as the core, creating a virtual enterprise portal (EP
) to directly apply ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies have a special preference for ASP. The latest news in the instry is that China Netcom, the third Telecom, has formulated the ASP development strategy,
Hanpu, the largest management consulting company in China, will position its eight subsidiaries in the ASP in the field of enterprise internal resource planning (ERP), and Beijing Liancheng interactive will aim at a
SP in the field of customer relationship management (CRM), Beijing "digital Ark" is positioned as ASP in network office. HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in ASP field according to their own advantages. At the present stage, there are countless services provided by ASP, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then, when the market is refined and standards are formulated and ASP procts are mature, the steady growth of ASP will eventually become the core of the business model of IT instry
the current development path of ASP
abbr.
1. = active server page [network] dynamic server web page
2. = application service provider [network] application service provider
3. = access service provider [network] access service provider
4. = advanced service platform advanced service platform
5. = advanced signal processor Level signal processor
6. = advanced sterilization procts (proced by Johnson & Johnson company in USA)
7. = advanced study program advanced learning program
8. = advanced system planning advanced system planning
9. = American selling price in USA
10. = Application Service Protocols
ASP
abbr.
1. = American selling price, American selling price
Asp1
KK: []
DJ: []
n.
1
KK: []
DJ: []
[poem] = Aspen
ASP is the abbreviation of active server page, which means "active server page". ASP is an application developed by Microsoft company instead of CGI script program. It can interact with database and other programs. It is a simple and convenient programming tool. Asp web page file format is. ASP, now commonly used in a variety of dynamic sites. ASP is a server-side scripting environment, which can be used to create and run dynamic web pages or web applications. Asp web pages can contain HTML tags, plain text, script commands and COM components. ASP can be used to add interactive content (such as online forms) to web pages, and also to create web applications using HTML pages as user interface. Compared with HTML, ASP web page has the following characteristics:
(1) ASP can break through some functional limitations of static web page and realize dynamic web page technology
(2) ASP files are included in HTML files, which are easy to modify and test
(3) the ASP interpreter on the server will make the ASP program on the server side and send the result to the client browser in HTML format, so all kinds of browsers can browse the web pages generated by ASP normally
(4) ASP provides some built-in objects, which can make the server-side script more powerful. For example, you can get the information submitted by users through HTML form from web browser, process the information in script, and then send the information to web browser
(5) ASP can use server-side ActiveX component to perform various tasks, such as accessing database, discovering email or accessing file system
(6) because the server sends the result of ASP program execution back to the client browser in HTML format, the user will not see the original program code written by ASP, and the ASP program code can be stolen<
working principle of ASP:
when the ASP function is integrated into the web site, the following things will happen:
1. Users input the web address to the browser address bar, and the default page extension is. ASP< 2. The browser sends a request to the server< 3. The server engine starts to run ASP program
4. ASP files are processed from top to bottom to execute script commands and HTML page contents
5. Send the page information to the browser<
the running environment of ASP
ASP needs to run in PWS or IIS. PWS or IIS services are attached to the CD of Windows 98 or Windows 2000, and can be installed through "add / remove windows components" in "add / Remove Programs"
generally, ASP should be combined with access database or SQL Server database to compile powerful programs<
Web server software that can run ASP
Windows 2000 installs IIS 5.0 by default, while Windows XP installs IIS 5.1 by default, and windows 2003 installs IIS 6.0 by default
PWS (personal web server) is a simple personal web server running in Windows 98<
the meaning and characteristics of ASP
ASP (application service provider, application software rental service provider) refers to the "application software service provider who provides application software services by leasing through the network", that is to say, the application software is the main body of the business, and the service is delivered through the network one to many places. This service-oriented transaction mode enables enterprises to rent through the way, In a more cost-effective way, ASP has the right to use software, and it can also greatly rece the cost of enterprise maintenance because of the centralized management of the operators.
basically, ASP has three characteristics: software service, service networking, information outsourcing service and network integration, and proct access, proct access and proct access, It can even be regarded as the combination of ISP (Internet service provider) and its (Information Technology Service).
ASP is the application service provider in English, and the Chinese standard translation is "application service provider", which refers to the company or enterprise that provides management application solutions for commercial or indivial customers. Recently,
ASP has been very popular in the media. It is difficult for people in IT instry to understand the content of ASP in the face of a lot of technical terms. This paper attempts to use simple language to uncover the mystery of ASP for the majority of readers, and have some basic understanding of the popular ASP field in IT instry
1. What is ASP
simply speaking, ASP is a service provider that provides services for customers. There is no essential difference between ASP and accounting office or marriage agency. The difference is that ASP is mainly through the Internet (Internet) as the main
work and business tools, using a one to many way to provide enterprises and companies with standardized application software to
and related technical consulting, management and leasing services. The concept of ASP was first proposed by the Americans in 1998. At present, it is regarded as the third network business model with a solid foundation, which is favored by the major IT manufacturers all over the world and can promote the development of network economy< Compared with the traditional outsourcing service, the main difference of ASP is: ASP is a one to many business model, the services provided are compatible and coordinated, and the charging method of ASP is generally monthly< The instry believes that ASP generally has such "members": telecom operators, traditional IT service providers, Internet access service providers (ISPs), independent software providers (ISVs), system integrators and pure ASP companies< According to popular views, ASP has the following five core connotations:
A. ASP focuses on application, providing access and management to application
B. ASP services can provide users with services that can be accessed in the "customized" new application system environment, such as ISP, without the prior resource investment of server, personnel, system and system authorization, and such services are generally charged by ASP monthly
C. ASP adopts the way of centralized management -- ASP generally has a management center, and all customers can access remotely through inte
rnet to obtain technical support and consulting services
D. one to many services, that is to say, ASP provides standardized proct packages, procts are the lowest degree of
customization or do not achieve customer customization, for instry users, it has reached the practical and convenient standard
E. according to the contract delivery, in the eyes of ASP customers, ASP is an organization that provides relevant services according to the customer agreement
to ensure that the application service system services can be truly performed< Why is ASP popular
generally speaking, the core problem that plagues the survival and development of domestic enterprises is management. With the popularization and application of Internet, enterprise users can rent ASP server and software system to manage their business anytime and anywhere; First, enterprises can save a lot of money for it construction and greatly rece the cost of enterprise management informatization. Second, users of ASP can obtain applications and services in various ways, and software service procts can be organized into a perfect, efficient and advanced enterprise management system in a very short time through the network, so as to quickly obtain the enterprise integrated operation and management scheme
with the rapid development of network economy and the rapid development of e-commerce, the main reason is that the network and website graally turn to ASP from portal to content and from attention to verticality
according to the author's information, the first one to get an electric shock on ASP in China is the netizen "flying bird". In June 1998, it spontaneously organized the "flying bird home" to research, exchange and discuss ASP technology. Now it has developed into chinaasp.com and become the earliest ASP application technology service provider website in China. Based on the actual situation in China, Shanghai reciprocity network Co., Ltd. has launched the ASP platform reciprocity network for domestic enterprises, providing enterprises with remote architecture and hosting services of internal and external network facilities and applications with e-commerce as the core, creating a virtual enterprise portal (EP
) to directly apply ASP to business proliferation
in addition, ISP has turned to ASP and become the proct of ISP's further development. Software companies have a special preference for ASP. The latest news in the instry is that China Netcom, the third Telecom, has formulated the ASP development strategy,
Hanpu, the largest management consulting company in China, will position its eight subsidiaries in the ASP in the field of enterprise internal resource planning (ERP), and Beijing Liancheng interactive will aim at a
SP in the field of customer relationship management (CRM), Beijing "digital Ark" is positioned as ASP in network office. HP is discussing with China Construction Bank to build ASP in financial field
ASP is emerging in the tide of it economy, and its development prospect is immeasurable< 3. The development stage and problems of ASP
various it roles with network service providers, software manufacturers and ISPs as the main force are making various attempts in ASP field according to their own advantages. At the present stage, there are countless services provided by ASP, and there is no concept of standardization and quantification. Hardware manufacturers are close to the "soil" and power direction of ASP, while software manufacturers and ISPs are directly involved in the first line of ASP business
the author estimates that after a period of exploration and development, ASP will develop towards service integration, and the preliminary standardization of procts and services will soon be established. Then, when the market is refined and standards are formulated and ASP procts are mature, the steady growth of ASP will eventually become the core of the business model of IT instry
the current development path of ASP
Hot content