http://ask.csdn.net/questions/364134?sort=votes_count
设计：http://blog.csdn.net/bigbug_zju/article/details/47750541
http://blog.csdn.net/dly215011/article/details/52975769
macGitHub客户端：http://blog.csdn.net/qq_30513483/article/details/51312637
