http://www.cnblogs.com/Clingingboy/archive/2011/07/04/2097806.html

http://www.cnblogs.com/RascallySnake/archive/2013/07/11/3185071.html

http://www.cnblogs.com/ggzss/archive/2011/08/25/2153746.html

http://blog.csdn.net/a497785609/article/details/12871301

http://blog.csdn.net/xiaobai1593/article/details/6980937

http://www.cnblogs.com/xia520pi/category/326361.html

https://msdn.microsoft.com/zh-cn/library/system.net.sockets.socket.select.aspx

http://blog.const.net.cn/a/9146.htm

http://blog.csdn.net/relar/article/details/38421543?utm_source=tuicool

http://www.cnblogs.com/HPhone/p/3662011.html