本程序可以实现在屏幕桌面上画任何东西，可以把屏幕当成一张纸，鼠标就是一只笔，可以任随你画，有兴趣的同学可以载下来参考。-This procedure can be achieved on the screen desktop painting anything, can the screen as a piece of paper, the mouse is a pen, as you can be any painting, interested students can set down t