yundongxingkong

说明：  运动的星空，实现多星星围绕地球旋转的动画演示，并且可以通过设置修改三轴之比，旋转圈数，达到较美观的效果。(campaign starry, multi-stars around the Earth rotating animation demonstration, and can set up triaxial ratio changes, rotating laps to achieve a more aesthetic results.)