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 looks "silly", hope that through this small demo to do some thinking and Inspiration of 331 partners)