一套优秀的IOCP类（包含例子），推荐-a good IOCP category (including examples), recommended!

VC++源码，IOCP完成端口，[1]---选择 - Select，[2]异步选择 - WSAAsyncSelect，[3]---事件选择- WSAEventSelect，[4]---重叠I，[5]---完成端口，内附教程，教程中包含了实现思路、原理等内容。-VC++ source code, the IOCP completion port, [1]---- Select, [2] asynchronous selection- WSAAsyncSelect, [3]--- event sel