一个简单的俄罗斯方块游戏，空格键直接下落，方向键上为变形，左右上依次为移动，单击游戏开始。支持我请找QQ799420410！-A simple Tetris game, space bar to direct the whereabouts of the arrow keys on the deformation, so the order of moves, click the game begins. Support me please find QQ799420410!

一个模拟砖块掉落的小例子，可以插入代码变成俄罗斯方块-A simulated brick falling small example, you can insert code into a Tetris