7．（位图动画）在第1题（绘图程序）中，添加公爵位图动画的实现。也可以作为一个单独作业。 8．（移动动画）实现移动动画部分的例子。 -7. (Bitmap animation) in Question 1 (a drawing program), add the realization of the Duke of bitmap animation. Also available as a separate operation. 8. (Mobile Animation) part of