采用三行三列的棋盘，根据极大极小搜索方法，采用人机对弈方式。一方走完一步后，等待对方走步，博弈过程每一时刻的棋局都在屏幕上显示出来。-3 using three lines of the board, in accordance with minimax search methods, the use of man-machine game mode. After the end of step one, waiting for the other side walk, the game eve