https://blog.csdn.net/csdn_ds/article/category/6937392
http://www.cnblogs.com/cbf4life/tag/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F/
《C#设计模式》PPT及源码分享
https://blog.csdn.net/LoveLion/article/details/9149029
重要
https://blog.csdn.net/sjdl9396/article/category/787185