说明：  SVN是一个版本控制软件，类似CVS，但是SVN的的有点是开源的，而且SVN的版本控制能力给CVS还要强多。SVN可以用于项目管理，还可以用于版本同步，功能可是十分强。
(SVN is a version control software, similar to CVS, but SVN is a bit of open source, and SVN version control to the CVS but also is much easier. SVN can be used for project management, but also can be used in a synchronized version, functional, but very strong.)