利用opengl图形软件包，建立太阳、地球和月亮的运动模型；增加光照系统，模拟太阳、地球和月亮的光照环境；并利用双缓存技术，用动画方式显示模型。-Use opengl graphics package, the establishment of the Sun, Earth and Moon motion model　increase the illumination system, simulate the sun, Earth and moon light environment　using double buffering technology, using animated display models.