用Winsock2 编写的一个文件传输的核心例程。分为客户端和服务器端两部分，当客户端连接到服务器后，它们之间可以互传文件。-Winsock2 prepared using a file transfer of the core routines. Divided into client and server in two parts, when the client to connect to the server, they can be to each other between the