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A. I want to learn some technology, but I don’t know what to learn

The following are some suggestions in the technical field:
1. Programming: learn programming languages, such as Python, Java, C++, etc. can be learned through online courses, books, and video tutorials.
2. Data analysis: Learn data analysis tools, such as Excel, Tableau, R and Python, etc., through online courses and books.
3. Artificial Intelligence: Learn technologies such as machine learning, deep learning, and natural language processing through online courses and books.
4. Network security: Learn network security technologies, such as network attack and defense, cryptography and secure programming, etc., through online courses and books.
5. 3D printing: Learn 3D modeling and printing technology through online courses and books.
6. Website development: Learn website development technologies, such as HTML, CSS, JavaScript and PHP, etc., through online courses and books.
7. Mobile application development: Learn mobile application development technologies, such as Android and iOS development, through online courses and books.
8. Human-computer interaction: Learning human-computer interaction technologies, such as user experience design and interface design, can be learned through online courses and books.
9. Robotics: Learning robotics, such as robot control and programming, can be done through online courses and books.
10. Blockchain: Learn blockchain technologies, such as Bitcoin and Ethereum, through online courses and books.

B. How to learn Python

Share the Python learning route: Phase 1: Python basics and Linux database

This is the introductory phase of Python, and it also helps students with no basic knowledge to lay a solid foundation. important stage. You need to master Python's basic syntax rules and variables, logic control, built-in data structures, file operations, advanced functions, modules, commonly used standard library templates, functions, exception handling, mysql usage, coroutines and other knowledge points.

Learning goals: Master the basic syntax of Python, have basic programming skills; master basic Linux operating commands, master the advanced content of MySQL, complete bank ATM system practice, English-Chinese dictionary, lyrics parser, etc. project.

The second stage: web full stack

This part mainly learns web front-end related technologies. You need to master html, cssJavaScript, JQuery, Bootstrap, web development basics, Vue, FIask Views, FIask templates, database operations, FIask Configuration knowledge.

Learning goals: Master the technical content of web front-end, and master the webEnd-end framework, proficient in using FIask, Tornado, and Django, and can complete data monitoring background projects.

The third stage: data analysis + artificial intelligence

This part is mainly about learning knowledge points related to crawlers. You need to master data crawling, data extraction, data storage, crawler concurrency, dynamic web crawling, and scrapy framework. , distributed crawlers, crawler attack and defense, data structures, algorithms and other knowledge.

Learning objectives: Be able to master crawlers, data collection, data organization and algorithm advancement, and artificial intelligence technology. It can complete phased projects such as crawler attack and defense, image mosaic, movie recommendation system, earthquake prediction, and artificial intelligence projects.

Stage 4: Advanced Advancement

This is advanced knowledge point of Python. You need to learn the project development process, deployment, high concurrency, performance tuning, Go language basics, introduction to blockchain, etc.

Learning objectives: Can master automated operation and maintenance and blockchain development technology, and can complete automated operation and maintenance projects, blockchain and other projects.

After learning according to the above Python learning roadmap, you can basically become a qualified Python development engineer. Of course, if you want to quickly become an elite talent recruited by companies, you need to have good teachers to guide you, and you also need to accumulate practical experience in more projects.

For those who are interested in Python development, you might as well start by reading the Python development tutorial! There are a lot of Python teaching videos on site B, ranging from basic to advanced. They are quite good. The knowledge points are explained in detail, and there is also a complete learning road map. You can also check it out for yourself, download it and try it out.

C. May I ask: Which country issued the ACSS digital currency bank card? Is it reliable?

Digital currency bank card,
doesn’t feel reliable.
You can ask the People's Bank of China and the China Banking and Insurance Regulatory Commission.
Subject to the statements of the People's Bank of China and the China Banking and Insurance Regulatory Commission.

D. Qianfeng web front-end training tells you what to learn

Qianfeng Education is a professional front-end training institution with complete teaching courses. The web front-end courses are divided into advanced learning stages. Sexually testing students to understand their learning status. The course system can adapt to market demand, keep up with the latest technology, fully meet the market's requirements for front-end engineers, and greatly enhance the market competitiveness of students.

Web front-end learning content includes 7 major learning stages:
Phase 1: Front-end page reconstruction
Phase 2: JavaScript advanced programming
Phase 3: PC-side full Stack project development
Phase 4: Mobile project development
Phase 5: Hybrid (Hybrid, ReactNative) development
Phase 6: NodeJS full-stack development
Phase 7: Big data visualization< br />Qianfeng Education’s front-end courses adapt to the marketIt is constantly compiled and updated according to the needs of the company, so that students can learn the technologies that are urgently needed by enterprises today. If you are interested in Qianfeng's courses, you can come to Qianfeng to try the courses for free, and provide students with free trial courses for up to two weeks. Let's understand it first and then decide whether to study systematically. Only by knowing whether it is suitable for you can you make the right decision.

If you want to know more about the Web front-end, it is recommended to consult Qianfeng Education. Qianfeng Education has established a teaching and research subject center to launch offline skills training courses that are close to the needs of enterprises. Courses include HTML5 front-end training, JavaEE+ distributed development training, Python artificial intelligence + data analysis training, full-link UI/UE design training, cloud computing training, full-stack software testing training, big data + artificial intelligence training, and intelligent Internet of Things +Embedded training, Unity game development training, network security training, blockchain training, film and television editing and packaging training, game original painting training, and all-media operation training. It adopts a full face-to-face, high-quality, high-experience training model, which is very worthy of choice.

E. How can computers quickly implement fct currency network node block links

There are three ways to speed up the opening of web pages: one is to increase network bandwidth; To optimize the local machine, the third is for the website designer to make certain optimizations for the web page.
The following are some processing methods:
Optimize images and use appropriate image formats;
Optimize CSS;
Reduce http requests (remove some unnecessary objects, separate two adjacent Combine pictures into one, merge CSS)
Remove unnecessary add-ons
Some content can be made static, so make it static to reduce the load on the server
Statistics code is placed at the end of the page

F. What technology development is needed for blockchain

What technology development is needed for blockchain:
1. Blockchain theory: Blockchain developers need to understand the theory of blockchain Knowledge and familiarity are the most basic requirements for a blockchain developer. The content includes blockchain network architecture, decentralization and other related application technologies. Expanding technical theory is mastery of Ethereum development.
2. Smart contract: Smart contract is a string of codes that blockchain developers need to write in blockchain programming language. It is a trust mechanism developed after imagining logic according to different scenarios, aiming to eliminate the intervention of third parties. Create an efficient and high-trust blockchain network. Blockchain developers need to realize automatic execution of this string of code, and the operation effect is irreversible.
3. Cryptography: Many blockchain application scenarios have high encryption, and point-to-point encryption mode is a characteristic of cryptography. By studying cryptography, blockchain developers understand encryption concepts such as wallets, keys, and a wide range of encryption and decryption technologies
4. Distributed architecture: Blockchain developers must understand the functions of distributed architecture and networks . The decentralized network is theThe basis of the blockchain architecture, the transmission of information in the blockchain network must follow a decentralized approach, so that everyone can enjoy the same network rights.

G. What is the model architecture of blockchain

Currently, there are a wide range of blockchain training courses on the market, and the course content and teaching formats are also diverse.

Blockchain

1. Introduction to programming basics

Computer software and hardware basics, character sets and character encodings, HTMLCSS (including HTML5CSS3), ECMABOMDOM, jQuery, node.js, Ajax and Express

2. Go programming language

Go basic syntax, process control, functions and data, error handling, Go object-oriented programming, Go concurrent programming, Go Network programming, Go security programming, Go advanced programming (goroutine, channel), database MySQL, LevelDB

3, Blockchain 1.0 - Bitcoin Bitcoin

Bitcoin principle, Bitcoin system architecture, cryptographic algorithm (implemented in Go language), consensus algorithm (implemented in Go language), Bitcoin transaction principles and transaction scripts, Bitcoin RPC programming (implemented by node.js), Bitcoin Minhra coin source code analysis

4. Blockchain 2.0 - Ethereum

The working principle and infrastructure of Ethereum, basic concepts of Ethereum (account, transaction, Gas), Ethereum wallet Mist and Metamask, Ethereum Forex trading, ERC20 standard Token development and deployment, developing IDE with Ethereum as a bridge - remix-ide, smart contracts and Solidity, Solidity deployment, backup and calling, framework technology: truffle and web3, DApp development practice, Geth

5. Blockchain 3.0 - Fabric of Hyperledger

Hyperledger project introduction, Fabric deployment and usage, Fabric configuration management, Fabric architecture design, Fabric CA application and configuration, application development Actual combat.

H. Is it too late to engage in blockchain work? Where can I start?

Currently, blockchain is not only applied in the financial industry, but can also be applied in the following industries. A simple example is banks. industry, payments and cash transactions, cybersecurity, academic records and academia, elections, networking and the Internet of Things, predictions, copyright, and more. There are still many fields that require blockchain technology, so it is conceivable that the Internet+ that we all mentioned before will become a blockchain+ situation in the future.

From the demand side, finance, medical care, notarization, communications, supply chain, domain name, voting and other fields have begun to realize the importance of blockchain and began to try to use it. Connect technology with real society.

From an investment perspective, the districtThe supply of investment funds in the blockchain is gradually increasing, the investment enthusiasm of venture capital is also rising, and the investment density is getting larger and larger. The supply of funds on the supply side is expected to promote the further development of the technology.

From the perspective of market application, blockchain can become a market tool to help society reduce platform costs and make intermediaries a thing of the past; blockchain will prompt the company to shift the focus of its existing business model, and is expected to Accelerate company development.

From the perspective of underlying technology, blockchain is expected to promote the transformation of data recording, data dissemination and data storage management methods; blockchain itself is more like an open source protocol at the bottom of the Internet. In the future, it will touch or even completely replace the underlying basic protocols of the existing Internet.

From the perspective of social structure, blockchain technology is expected to integrate law and economics, completely subverting the original social supervision model; the organizational form will change as a result, and blockchain may eventually It will lead people towards a distributed autonomous society.

Where should I start if I want to learn blockchain?

First of all, we need to have a comprehensive understanding of the origin and cognition of blockchain from a macro perspective, and why we need to do this. Because without understanding, we have no right to speak. Without understanding, how to judge the next trend is to differentiate. Blockchain, even if others follow what others say, still needs its own learning and understanding as support. So, what do you need to know? The content I have listed is for your reference only. If you are already in the currency circle, you will have something to learn. If you understand, you can skip this step:

1), basic theory of blockchain

2), introduction to basic programming (basic of computer software and hardware, character set and character encoding, HTML5+CSS3 and other front-end technologies, ECMAScript+BOM+DOM, jQuery, node.js, Ajax and Express framework)

3), Go programming language and database operations

4), Blockchain 1.0 programming ——Bitcoin

5), Blockchain 2.0——Ethereum

6), Nebulas Chain and EOS development practice

7), District Blockchain 3.0 - Fabric of Hyperledger

To those of you who are still struggling in the blockchain trend: if there is demand, there will be a market, and society has never lacked outstanding technical talents. If you understand it well (you can refer to After watching Qian Feng’s blockchain video tutorial), you must be sure to start carefully.