http://blog.csdn.net/wuzhekai1985/article/details/6704902
http://www.cnblogs.com/python27/category/337667.html
http://www.cnblogs.com/youxin/
http://blog.csdn.net/han_jiang_xue/article/details/11745507
http://blog.csdn.net/zmissm/article/details/21653547
原文地址：http://www.cnblogs.com/hellogiser/p/to-do-series.html
