文件中有一些精选棋谱，程序支持打开或保存棋谱。支持四种下棋方式：人机对弈，人人对弈，机机对弈，混合对弈。此外，还有悔棋，和还原功能。-Document has a number of selected chess, procedures to support the open or save chess. Support for playing chess in four ways: man-machine chess, everyone game, game machine, mixed ga