到这里
https://code.google.com/p/msysgit/downloads/detail?name=Git-1.8.3-preview20130601.exe&can=2&q=full+installer+official+git
下载这个
https://msysgit.googlecode.com/files/Git-1.8.3-preview20130601.exe
参考 http://blog.csdn.net/jernymy/article/details/7087579
