http://blog.csdn.net/s_ongfei/article/details/2794570
http://my.oschina.net/bddiudiu/blog/228788
http://blog.csdn.net/a1003671336/article/details/49925021
http://blog.csdn.net/jiejiewish/article/details/7209418
http://yangpanwww.iteye.com/blog/797563
http://www.cnblogs.com/tankaixiong/p/3660075.html
http://hanqunfeng.iteye.com/blog/2176172
http://blog.csdn.net/fuckyouone/article/details/40187569
http://www.cnblogs.com/candle806/p/3555993.html
原文：http://www.cnblogs.com/asoks/p/5339478.html