一个课堂上做得小游戏 用鼠标单机控制小鸟的飞行确保不撞到柱子和地面，游戏有三个状态开始界面 和游戏状态和game over界面 图片是开始界面(A game played in class is controlled by a single mouse to ensure that the birds do not bump into the pillars and the ground. The game has three states, the initial interface and