说明：  IOCP全称I/O Completion Port，中文译为I/O完成端口。IOCP是一个异步I/O的API，它可以高效地将I/O事件通知给应用程序。与使用select()或是其它异步方法不同的是，一个套接字[socket]与一个完成端口关联了起来，然后就可继续进行正常的Winsock操作了。然而，当一个事件发生的时候，此完成端口就将被操作系统加入一个队列中。然后应用程序可以对核心层进行查询以得到此完成端口。此资料是对IOCP模型的深入讲解及总结，让你能更清楚的了解IOCP模型工作的本质。
(The full name of IOCP I/O Completion Port, Chinese translated as I/O completion ports. IOCP is an asynchronous I/O API, it can be efficiently the I/O event notification to the application. With the use of () or other asynchronous method is different, a [socket] socket and a completion port linked up, then you can continue normal operation of the Winsock. However, when an incident occurs, the completion port will be operating system to join a queue. Then the application can be on the core layer of the query to get the completion port. This information is on IOCP model in-depth explanation and summary, let you can work to understand the essence of IOCP model more clearly. )