俄罗斯方块游戏，由VT控制码完成，游戏过程中q键退出，game over时，r键重新开始，方向键控制方块移动及旋转-Tetris game is controlled by the VT code to complete the q key to exit the course of the game, game over when the r key again to begin the arrow keys to control the box, move and rotate