git for mac

http://blog.youkuaiyun.com/crylearner/article/details/7685022

http://www.cocoachina.com/bbs/read.php?tid=200557

http://blog.163.com/xianfuying@126/blog/static/21960005201181482518631/

http://www.jianshu.com/p/8d26730386f3

http://www.cnblogs.com/heyonggang/p/3462191.html

http://jingyan.baidu.com/article/7908e85c953138af481ad218.html

http://www.cnblogs.com/heyonggang/p/3462191.html

http://www.runoob.com/w3cnote/git-guide.html