How to develop virtual currency platform

Black and white between the good dwarf and the bad dwarf, are you a good dwarf or a bad dwarf? In order to dig a gold mine full of attraction, the good dwarves and the bad dwarves need to cooperate with each other in their respective teams: the goal of the good dwarves is to extend the mining road to the gold mine, while the goal of the bad dwarves is to destroy it; At the same time, for extra rewards, there is also the possibility of breaking the bridge within the team, and there is also the possibility of internal suspicion and struggle between good dwarves
in the fight between dwarves, all kinds of function cards should be used wisely. Some give way to continue, some play obstacles not to let the other party action, or remove obstacles card, and can peek at the destination map card. In the end, all the cards are touched and all the cards are played. If the good man's road is not connected to the destination with gold, the bad man wins

2021 East China Normal University MBA pre interview will ask questions according to the materials submitted by students and relevant background

1, how do you think MBA can help you broaden your horizons? How to change your way of thinking

2, how do you plan your work next week

3, what's your company going to do next

4, what do you think is the core competitiveness of your enterprise

6, why do you switch to the present instry

7, what do you think of your instry

8, what is your company's business

9, why is your major different from your current work

10, what value do you think your work brings to you

11, the company culture of your last job is wolf, what is the company culture now? Which one do you prefer

12, what do you think are the advantages of your company

13, why do you choose to start a business

14, how can your previous work experience help you start a business

...

as long as you are well prepared, it is not difficult to win the excellent

in 2021, the content of the MBA pre interview of East China Normal University is as follows:

personal comprehensive ability test and English ability test:

01 personal comprehensive ability test :

form: two to one way

ration: 10-15 minutes for each person Off campus examiner (Enterprise Executive / Human Resource Director)

02 English proficiency test:

test level: Basic English expression ability

form: group test (group of 8)

ration: 30-40 minutes for each group

Why develop digital currency? From the perspective of the central bank, there are six advantages:

first, to improve the convenience and transparency of economic transactions; second, to rece the high cost of the issuance and circulation of traditional paper money; third, to better support economic and social development; fourth, to help the comprehensive realization of Inclusive Finance; fifth, to rece money laundering, to promote the development of the economy and society Sixth, improve the central bank's control over money supply and circulation

steps of digital currency development:

the first step,

first, we need to download the source code of a blockchain system from git, such as choosing the backbone code of bitcoin to download the relevant source code

the second step and

code all need to be compiled, so you need to prepare the compilation environment and tools, download the environment compilation tools, configure

system environment variables, QT environment and other files, and compile commands are described in detail in the files in ITC source code

however, the construction of the system and development environment, program compilation and other processes are cumbersome, so it is not recommended for ordinary users to make their own. For developers, it may take 2-3 days to install and configure for the first time

the third step,

take bitcoin development as an example, it is the development environment of Q. after downloading the source code and configuring the environment, open the source code of the bitcoin core in qtcreator, configure relevant files and compilers, and start to try to compile the client of the bitcoin core

Step 4,

transform into your own digital currency, open each source file, find the corresponding local adjustment parameters, such as adjusting

the number of coins in each block, the total output, the adjustment difficulty, and so on. Then the most critical point is to change the name to your own currency

name as you want, and don't forget to replace the related icons in the resource folder. If all goes well, after re compiling, your new coin will be invented successfully

for the development of this digital currency, the technology is relatively professional, so it is better to have a professional team to assist

framework for digital currency development:

1. Build ethereum private chain test environment and public chain node environment configuration

2. Ethereum transaction and confirmation principle

3. Ethereum JSON RPC interface

4. Ethereum transfer and withdrawal principle

5. The server connects Ethereum public chain interface, and its own server stores business data, Public chain storage transaction anonymous data

6, private key security processing

the following is the development code example:

for example, the common digital currency wallets in the market are:

app class: kcash Imtokenweb: myethereumwallet Google browser plug-in: metamask

one of the most commonly used is imtoken

blockchain transaction technology concept:

let's take a look at how blockchain transaction is handled with bitcoin as an example. In order to send a certain amount of bitcoin to another wallet, you need the following information: the address to send the funds to your wallet, the amount of cryptocurrency you want to send

the ID of the recipient's wallet

each transaction is signed with a unique confidential private key. Once the payment is signed by the sender, it becomes publicly available. The transaction still needs to be confirmed so that the payee can get the money. In order to confirm the transaction, it is necessary to generate a new chain block

these blocks are generated by complex mathematical calculation to find the unique key. It takes 10 minutes to create a new block, and the person who finds the key gets a certain amount of coins as a reward. Once a new block of the chain is created, it is not possible to remove it from the database or change the information in some way. Therefore, blockchain transaction is final and irreversible

three core advantages of digital currency:

first, digital currency is a fair currency

digital currency has no specific issuing institution, is not issued by a country, only depends on a specific algorithm, which means that digital currency can not be manipulated by manipulating the number of issues, so digital currency is a free, non-state currency

we can see that there are many countries that directly recognize the virtual currency, so if there is a demand, it needs a trading platform

many investors who want to build a virtual currency trading platform now, why can't they go to these areas to build a trading platform? Building a virtual currency trading platform is a good business opportunity, isn't it

although the emergence of paper money facilitates the transactions in our daily life, there are risks of being stolen and received. Although e-money can avoid these risks, there will be new problems such as theft and swiping

digital currency can avoid the above problems. And broadcast every transaction record on the network. Yes, all nodes save all the currency circulation information, so that any node can easily find the currency circulation before the transaction

but we can't know who the owner of this account is, and no one has the ability to manipulate the digital currency on other people's accounts, which protects the privacy of users

if you also hold trading digital currency, foreign exchange gold, crude oil, contract Futures: