git常用命令

http://www.cnblogs.com/1-2-3/archive/2010/07/18/git-commands.html

http://blog.jianingy.com/content/git%E5%B8%B8%E7%94%A8%E5%91%BD%E4%BB%A4

http://blog.csdn.net/swt914/article/details/6335098