以前曾经流行一种游戏叫做俄罗斯方块,游戏机不大的屏幕上,几种形状的方块纷纷落下来,你要想办法把这些方块砌整齐,下面的方格才能被消掉。一旦方块接触了屏幕顶端,游戏即告失败。游戏级别越高,方块落下的速度就越快, In the past, a popular game called Tetris was played. On a small screen, several shapes of blocks fell. If you want to find a way to make these squares neat, the following squares can be eliminated. Once the box touches the top of the screen, the game fails. The higher the game level, the faster the block falls.