五子棋的小程序，考虑了先手双三禁手的情况可以人和电脑，人和人，步数有统计，开始可以选择白旗或者黑棋-Gobang a small program, taking into account firstly the three pairs of hands can be cut and the computer, and the people, a few steps there are statistics, can choose to start a white flag or Black