听说过‘三子棋’游戏吗？该程序是单机版的‘三子棋’游戏。规则很简单：下子阶段，组成’三‘时，可把对方的子变为无效子（下完后该子会被去掉）。行棋阶段，组成“三”时，可把对方的子直接去掉。谁最先无子谁就输。-Heard three sons chess games? The program is stand-alone version of the third son of chess games. Rule is simple: No