一个用MFC编写的五子棋程序源代码，实现了五子棋的大部分功能，这个程序是单机版本，网络版的这要实现网络通信部分。-A backgammon program written using MFC source code to achieve most of the functionality of backgammon, this program is stand-alone version of the online version of this section to achieve netwo