IOCP模型与网络编程
http://blog.csdn.net/neicole/article/details/7549497
百度百科的介绍
http://baike.baidu.com/link?url=T6rQ3AQzgF7lc0rUeziAhZAYuIn7RNDZPBSmuHMs2hW9Y1ygOEIMeAA5_zS3fcMkpM8Tn9qblhBWbM8JXIhiBq
