tetris

代码说明：

  基于dos界面实现俄罗斯方块游戏，可以实现双人对战，调节游戏模式等多种趣味功能。支持播放背景音乐、记录玩家分数。(Based on the DOS interface, the Russian square game can be realized, which can realize the double fight, adjust the game mode and other interesting functions. Support to play background music, record player scores.)