说明：  用TURBO C 2.0 编写的小程序，主要用来演示DOS下图像编程。 模拟了太阳系中九大行星运转的图形动画。
(TURBO C 2.0 with the preparation of small procedures, the main image used to demonstrate programming under DOS. To simulate the operation of the nine planets in the solar system animated graphics.)