完全用C写的五子棋，有一定的智能，全部鼠标操作，由于是DOS系统下的，所以画面不是很漂亮，做五子棋的可以参考。-Written in C and the backgammon, there is some intelligence, all the mouse, because it is under DOS system, so the picture is not very pretty, do backgammon can reference.