May 30, 2021 Article blog
GitHub ：
As an open source library and version control system, Github has more than 9 million developer users. As more and more applications move to the cloud, Github has become the preferred way to manage software development and discover existing code.
Gitee.com is OSCHINA.NET's code hosting platform, supports Git and SVN, and provides free private warehouse hosting. More than 5 million developers have chosen Gitee.
CSDN ：
Founded in 1999, China Software Developer Network is dedicated to providing chinese software developers with lifecycle services such as knowledge dissemination, e-learning, and career development.
12580code Chinese and foreign boutique source gathering station, with APP / web / games / applications and other boutique source code, to provide developers with a high-quality code sharing platform.
Blog Park is a knowledge-sharing community for developers. Since its inception, Blog Park has been committed to and focused on creating a pure community of technology exchanges for developers, enabling and helping developers share knowledge over the Internet, benefiting more developers.
W3Cschool is a professional programming learning and technical documentation query website that offers online tutorials and user manuals on programming languages and open source technologies including HTML, CSS, Javascript, jQuery, C, PHP, Java, Python, Sql, Mysql, etc., and is a learning community and rookie programming platform similar to w3schools abroad.