https://www.google.com: Basically you can find answers to almost all questions here, but accessing it requires some tricks.
http://stackoverflow.comA place with real substance. When you encounter code-related problems, you are often directed to this site. The answer quality is high, and the layout is clean and clear. Now when I encounter a problem, I often add the word "stackoverflow" after the search terms. While pressing Enter, I often curse at the founder for giving such a long name.....
http://github.comThe largest open-source center, with a wide variety of projects, from gorgeous and brilliant interfaces to low-key and practical little libraries, everything you can think of. You need to keep your eyes open and choose carefully. It is suitable for those with good English. There are especially many Ruby and JavaScript projects.
http://codecanyon.netWhen I first saw this website, everyone was stunned. So code can be sold online?!! Many coders upload various kinds of code, and each piece has a clear price tag. Looking at the sales ranking, some sold over 30,000 copies at $19. Oh my god. You can see the demo effects of the code, which are really beautiful. The code mainly consists of PHP, WordPress themes, JavaScript, and CSS, focusing on the front end.
https://www.lintcode.com/: An algorithm learning website. Go there and solve two algorithm problems a day, and you can go anywhere in the world without fear.
https://www.freecodecamp.org/: This is a web development learning website initiated abroad. It takes you step by step from simple to deep learning of web development. Like a workbook, and when you complete the corresponding content, you will receive the corresponding certification.
http://it-ebooks.info/: A large electronic library, where you can instantly download books for free.
Domestic:
http://csdn.netA domestic entry-level website for programmers. It has a lot of mixed content, including forums, resource downloads, blogs, various news, and more. Often I can only find stable resource downloads on this site. You need to start accumulating points from an early age; don't wait until you need to download and realize you don't have enough points...
http://oschina.net The best open-source community in China. The atmosphere for discussing problems here is quite good. The founder, Hongshu, is also very enthusiastic, and updates are timely. You often see newly released open-source projects introduced here with translations.
https://cnblogs.comPersonally, I think it is one of the better domestic tech blog websites. The overall quality is better than CSDN.
https://zhihu.comThere are some programming topics that are quite good. Many great people share programming experience and personal growth there.
http://segmentfault.comThe Chinese version of StackOverflow. The work of someone born in the 1990s. It has accumulated quite a few Chinese Q&As, but the popularity still needs to improve.
https://www.example.comOwn website, rich content. Beginners can use it as an introductory guide, and experts can use it as a manual. Supports mobile version. The address is:https://m.example.com
https://www.infoq.cn/: InfoQ's content has considerable technical depth. Many big companies' architectures are introduced there. Many practical experiences are very worth learning from.
https://juejin.im: Juejin, a high-quality technical community. From Swift to React Native, performance optimization to open-source libraries, it keeps you from missing every technical highlight of internet development.
https://www.v2ex.com/: V2EX is a place for sharing and exploring. There are many employees and programmers from major companies. Everything you want is available.
https://www.nowcoder.com: Interview experiences and practice interview questions. Sharing of interview questions and experiences from various companies. Before job hunting, seriously practice them, and you will definitely gain a lot! Get the offer you want!
https://www.proginn.com/: Programmer Inn is a leading freelance working platform for programmers. If you are an experienced and qualified developer, you can register as a developer on it, do some projects in your spare time, and earn some pocket money.
https://www.imooc.com/: Imooc, a programming website for online video learning. It provides rich video tutorial resources and open courses for mobile development, PHP development, web front-end, Android development, HTML5, and more.