20171113

https://www.cnblogs.com/diyunpeng/archive/2011/09/15/2177028.html

https://segmentfault.com/q/1010000002887657

https://www.cnblogs.com/yupeng/p/3428556.html

https://www.cnblogs.com/kfx2007/p/5970784.html

https://www.zhihu.com/question/19751023

https://www.cnblogs.com/hwd9654/p/5707920.html

http://blog.csdn.net/jcjc918/article/details/9354815

https://www.cnblogs.com/djangochina/archive/2013/06/12/3132438.html

http://blog.csdn.net/lanyuanershe/article/details/8083425

http://blog.csdn.net/lanchunhui/article/details/50248327

https://www.cnblogs.com/oddcc/p/6224185.html

http://blog.csdn.net/q_l_s/article/details/53468243

https://www.cnblogs.com/djangochina/archive/2013/06/12/3132438.html

https://www.cnblogs.com/zhangbo127/p/4597228.html

https://www.cnblogs.com/JohnLiang/p/5715746.html

http://www.jb51.net/article/47978.htm

https://www.cnblogs.com/linjiqin/p/3608541.html