VC++ MFC Socket编程例子，C/S结构的程序，分客户端和服务端，Server端又分两个版本：一个是MFC，一个是SDK版本，VC6.0环境下可顺利编译。-VC++ MFC Socket programming examples, program C/S structure, client and server, Server side is divided into two versions: one is the MFC, one version of the SDK, you c