https://my.oschina.net/sithome/blog/830473
http://www.cnblogs.com/rancho-blog/p/6562127.html
https://my.oschina.net/sithome/blog/830526
https://my.oschina.net/sithome/blog/831781
https://my.oschina.net/sithome/blog/835942
原文链接：https://www.f2er.com/angularjs/146088.html