用java实现了简易的五子棋，其中包括人人，人机对战。只不过人机对战实现对局面判断不是很准确，所以人机看起来“笨笨的”，希望通过这个小demo能给想做五子棋的伙伴一些思路和启发(The use of Java to achieve a simple Gobang, including everyone, man-machine combat. But the war machine of our judgment is not very accurate, so the machine look