Blockchain GoJava

1. Go is an open source programming language, which makes it easy to construct simple, reliable and efficient software. If you want to learn this programming language, you should first find a good tutorial. Brother Lian's go language + blockchain training has recently published a new set of go language tutorial, and the teacher's speaking is very good

with the global hot discussion of the concept of "blockchain", the application of blockchain technology has been quietly added to the daily life scenes such as finance, logistics, credit reference, manufacturing and retail. Some experts have shown that the future blockchain will be closely related to people's lives, and the integration of blockchain technology and people's daily life is the general trend

the popularity of the blockchain market has triggered a large number of talents demand based on blockchain technical personnel, and the popularity of blockchain talents is rising at the speed of light. According to the "2018 blockchain high salary list" released by lagou.com, Tencent, Xiaomi, Suning, Jingdong and other domestic enterprise giants have released many high salary blockchain post demands, trying to explore blockchain related technologies and applications. It is also pointed out in the list that the demand for high salary jobs is mainly based on blockchain related technical jobs, among which Suning and Keda have been given the highest monthly salary of 100k

the huge market demand for technical talents will inevitably lead to the explosive emergence and growth of the whole blockchain training market. Most of the training modes can be divided into online training, traditional IT organization training, and offline short-term training camps, which mainly focus on high-end forms. However, in the process of the hot market evolution, there are also a variety of blockchain training chaos: lecturers' qualifications are watered down, and even the most basic names are not disclosed, the syllabus is opaque, and the teaching quality is shrinking, Unreasonable class arrangement and uneven training fees and so on

with the large-scale development of the whole blockchain training market, brother company ecation, together with Yin Cheng, a senior blockchain expert, and his Tsinghua Shuimu Weiming team, has set up a blockchain college. With its professional and powerful team of technical lecturers, detailed and comprehensive curriculum system, and a large number of authentic enterprise blockchain projects, it aims to deepen the blockchain teaching and training field, And train more professional technical talents for enterprises and society<

Yin Cheng, a senior blockchain technology expert, graated from Tsinghua University, is the dean of brother Lian blockchain college. He once served as Google Algorithm Engineer, the world's most valuable expert in the field of Microsoft blockchain, and the gold medal lecturer of Microsoft tech.ed conference. Proficient in C / C + +, python, go language, sicikit learn and tensorflow. With 15 years of programming experience and 5 years of teaching experience, senior software architect, Intel Software Technology expert, famous technology expert, with many years of working experience in the world's top it company Microsoft Google. He has many years of experience in software programming and lecturing, and has developed many procts in human-computer interaction, ecation, information security, advertising and blockchain system. He has deep experience in project management and R & D, has two AI invention patents, and has practical experience in developing e-money deployed to Microsoft Windows azure. Teaching explanation is in simple language, so that students can apply what they have learned
the first stage: blockchain instry and go programming for 5 weeks
the second stage: cryptography and consensus algorithm for 2 weeks
the third stage: Ethereum source code analysis and development for 3 weeks
the fourth stage: Super ledger and node.js for 2 weeks
the fifth stage: bitcoin & EOS for 4 weeks
the sixth stage: comprehensive actual combat of the project

2. Go full stack + blockchain course:
a total of 22 weeks, divided into five stages,
the first stage is 4 weeks, go language foundation and network concurrency, learning the introctory go language,
the second stage is 4 weeks, go language practical web development, crawler development, cryptography, consensus algorithm, realizing lightweight public chain, learning the website and crawler that can develop golang, Achieve lightweight blockchain
stage 3, 4-week Ethereum source code analysis and smart contract DAPP development, master Ethereum core and smart contract development, as well as blockchain,
stage 4, 4-week super ledger, bitcoin EOS, source code analysis and smart contract practice, master super ledger development, cat bitcoin, bifurcated EOS after learning, As well as DAPP development of smart contract
phase 5, 6-week project practice, five enterprise level projects, and one year of blockchain project experience after learning
from the characteristics of the language itself, go is a very efficient language, which highly supports concurrency. Go language itself pays more attention to distributed system, and concurrency processing is relatively good, such as advertising and search, That kind of high concurrency server
go language advantages:
excellent performance, can be directly compiled into machine code, does not rely on other libraries, go is extremely fast. Its performance is similar to Java or C + +
concurrency is supported at the language level, which is the biggest feature of go. It is born to support concurrency, and go is the concurrency supported in gene, which can make full use of multi-core and make it easy to use concurrency
the built-in runtime supports garbage collection, which is one of the features of dynamic language. Although GC is not perfect at present, it is enough to cope with most of the situations we can encounter, especially GC after go1.1
it's easy to learn. The authors of go language all have the gene of C, so go naturally has the gene of C. There are 25 go keywords, but the expressive ability is very strong. It almost supports most of the features you've seen in other languages: inheritance, overloading, object, etc
rich standard libraries, go has built a large number of libraries, especially the network library, which is also my favorite part< As like as two peas, br / > built-in powerful tools, Go language is built with many tools chain, the best should be gofmt tools, automatic formatting code, make team review become so simple, code format is exactly the same, it is very difficult to think differently.
cross platform compilation and fast compilation. Compared with the sluggish compilation speed of Java and C + +, the fast compilation time of go is a major efficiency advantage
disadvantages of go language:
package management: package management of go language is absolutely not perfect. By default, it has no way to make a specific version of the dependency library, nor can it create replicable builds. In contrast, python, node and Ruby all have better package management systems. However, with the right tools, the package management of go language can also perform well
lack of development framework: go language does not have a major framework, such as Ruby's rails framework, Python's Django framework or PHP's laravel. This is a heated discussion in the go language community, because many people think that we should not start with using frameworks. This is true in many cases, but if you just want to build a simple crud API, it's much easier to use Django / djrf, rails laravel, or Phoenix
exception handling: go language can help developers deal with compilation errors by simply returning errors (or call stack) through functions and expected calling codes. Although this method is effective, it is easy to lose the scope of the error, so it is difficult to provide meaningful error information to users. Error package can solve this problem by allowing us to add context and stack trace to return error
another problem is that we may forget to handle errors. Static analysis tools such as errcheck and megacheck can avoid these errors. Although these solutions are very effective, they may not be the right way.

3. Go language and blockchain are involved in the fields of upper application development of blockchain, lower system development of blockchain, high concurrency server, web and micro service development, distributed development, etc. Go language and blockchain focus on the underlying system of blockchain, which is more in-depth
what I know is that smart podcasting has set up this subject, and some of them will have supporting materials and free courses, so you can go and have a look.

4. Blockchain learning is more about understanding the idea of decentralization and the value of decentralization. Language is the second thing
however, as Ethereum and hyperledger fabric have the best support for go language, go language must be learned
next, I'll give you the answer to another question, hoping to help you
Background: I started to study blockchain technology in 2015, so I have a certain understanding of blockchain
statement: it is estimated that everyone who sees this question wants to get started with blockchain, so this answer is mainly an introction at the entry level. It's just an introction at the entry level, which is not suitable for blockchain practitioners to improve their learning.

5. < UL >

the underlying development of blockchain can't be realized with Java

as the upper development, you just need to dock according to the given open source interface, and then develop what you need with the language you are good at

now there are many blockchain system templates, you can see which development cases

< / UL >

6. Recommend EBIT, you can go to the official website.

7. With the development of Internet. The shortage of IT talents will be more and more serious. According to a conservative estimate, the demand for it talents in the Chinese market is more than 200000 every year. The domestic IT ecation is mainly the academic ecation of computer, electronics, telecommunications, information technology and other related majors in Colleges and universities. The annual number of college graates is about 50000, which is far from meeting the needs of the market. I

8. 2019 is a year of rapid development of bitcoin derivatives, especially in the second half of the year, major exchanges rush to launch futures contract trading, it seems that spot trading + futures trading has become the standard configuration of exchanges. When the market procts are highly concentrated, the market competition is very fierce. The contract market is in full swing, and the vast majority of market shares are held by bitmex, okex, fire currency and other exchanges. As a result, the contract market share is getting smaller and smaller. If you want to win a place in the derivatives market, you have to work hard in proct research and development, which is bound to break through the current market pattern

although the futures contracts were launched last year, for the bitcoin derivatives market, futures alone is obviously not perfect, and there is a huge space for the bitcoin derivatives market. However, bitoffer exchange aims at the bitcoin derivatives market, relying on the advantages of the top financial R & D team, It is the first to launch bitcoin options and bitcoin ETF funds in the world, which is favored by the majority of users<

Lucian, chief analyst of bitoffer exchange, said that BTC options and ETF funds were launched to make up for the current vacancy in the bitcoin derivatives market. What other exchanges can't do is for us to do. The launch of bitcoin options and ETF is not only the improvement of the bitcoin derivatives market, but also a performance of promoting the development of the market. Any investment market can not do without derivatives, because investment is certainly risky, and derivatives can be used as risk hedging tools<

Lucian also revealed that bitoffer is currently developing and building a new bitcoin futures contract trading in the instry, which is expected to be launched in the first quarter of 2020. It is worth noting that the platform has been launched for spot, options and ETF fund trading. If the futures contract trading is launched in the first quarter, it means that, Bitoffer will become the world's first exchange with a full range of bitcoin spot and derivatives routes. By then, bitoffer is bound to win a place in the derivatives market!

9.

Honesty is a moral category, the second "ID card" of citizens, and the general name of honesty in daily behavior and credit in formal communication. Generally refers to dealing with people in good faith, honesty, honesty, promise, etc. But it generally refers to two aspects: one is to be sincere and honest, respect facts and seek truth from facts; The second is to keep the promise

According to the extended materials:

I. related allusions: Zeng Shen, a famous thinker and Confucianist in the state of Lu in the late spring and Autumn period, is one of the 72 sages among the students of Confucius. He is erudite and versatile, and attaches great importance to self-cultivation and noble morality

once, his wife was going to work in the market, and his young children were clamoring to go. Zeng Shen's wife didn't want to take her children, so she said to him, "have fun at home. When your mother comes back, she will kill the pigs and cook meat for you." The child was very happy to hear that, and no longer clamored to go to the market. This is to coax the child to say to play, after that, Zeng Shen's wife forgot

However, Zeng Shen actually killed a pig in his family. His wife saw that Zeng Shen had killed the pig and said, "I'm waiting for my child at home for peace of mind. Then I said that when I come back from the market, I'll kill the pig and cook meat for him. How can you take it seriously?" Zeng Shen said: "children can't cheat

children are too young to understand the world, so they have to learn from others, especially their parents. Today you deceive your child and sully his heart, and tomorrow your child will deceive you and others; If you don't believe what you say in front of your children today, they will no longer trust you tomorrow. Look at the harm. "

Second, honesty ethics

Chinese people's honesty is mainly a kind of "identity" ethics, while Westerners' honesty is a kind of "contract" ethics

in ancient China's natural and economic society, honesty was mainly emphasized in the narrow range of families, tribes and villages, which was a kind of patriarchal clan ethics in the identity network

it mainly requires the subjects to be loyal to the monarch, the children to be obedient to their parents, and the wife to be loyal to her husband, which is totally a kind of personal attachment, rather than based on the complete equality of each other's personalities. If the subjects, children, wives and concubines try to get rid of this dependence, they will be severely punished by the family and the state, even the death penalty

With the development of commodity and monetary economy, the Western way of good faith is a kind of mutually beneficial contract ethics. Western social contract theorists regard honesty as a moral law of commitment and performance, and combine morality with the rule of law. Hugo Grotius, a western scholar, pointed out that it is human nature to keep the contract. When people make a contract, civil law will come into being

he believes that "if there is a contract, it must be fulfilled" and "if there is a crime, it must be punished". Thomas Hobbes, a British political philosopher, believes that human beings are born selfish and will only protect their own interests. In order to seek common interests, human beings must conclude social contracts and let the state guide people's behavior by law

in order to ensure the realization of interests, it is necessary to perform the contract. He further believes that keeping a contract is the source of justice, that there is no justice without a contract, and that it is unjust if a contract is not followed