SVN（版本管理的源代码，需要的可以去看看，这是在官网下载的东西）-SVN (source code version management, need to look at, which is the official website to download something)

git分布式版本控制系统已经十分流行，相对svn有分布式管理的优势，压缩文件包括：1份中文文档和1份英文文档；git bottom up.pdf从git开发的原理讲解git适合老手，progit.zh.pdf中文版解释，适合入门的人学习使用，两者均可以作为参考文档收藏。-git distributed version control system has been very popular, relatively svn advantage of distributed management,