井子游戏DOS版，利用控制台进行运行。游戏内容与WINDOWS版一致，电脑AI与玩家谁先连线满三个，谁就获胜。相比WINDOWS版，DOS版更清晰，逻辑更明了，代码可读性强-Well sub-DOS version of the game, use the console to run. Game content consistent with the WINDOWS version, the computer AI with the player who should connect at l