说明：  本五子棋游戏是java源码，可以实现人机对战和人人对战，同时有帮助菜单。输和赢都会出现提示。计算机走棋子是用穷举法判断每一个坐标点的四个方向的的最大棋子数，最后得出棋子数最大值的坐标，下子。
(The backgammon game is the java source code, and everyone can play against human battle, while the Help menu. Will be prompted to enter and win. Computer to go with the brute-force method to determine the piece is a coordinate point of each of the four directions of the maximum number of pieces, and finally arrive at the coordinates of the maximum number of pieces, erupted.)