点击运行后，显示屏上出现一个蓝色的水面，当单击动画工具按钮后，再用鼠标点击屏幕，会显示水纹扩散，再次点击工具按钮，动画停止，屏幕定格-Click to run after a blue screen appeared on the surface, when the button click animation tool, and then click the screen will show the spread of水纹, click the Tools button again, animation, stop, the screen frame