方块移动和回放演示。原本是做饿罗斯方块游戏的，基类都写好了。增加了回复游戏过程,及其搞笑的功能（老师要求~. ~）-Moving boxes and playback demo. Ross was originally done hungry game box, the base class are written. Reply increased during the game, and funny features (teacher asked ~ ~)