用opengl实现小球和背景的填充，并且移动鼠标实现人机交互，通过进球情况分出玩家的胜负-Using opengl to draw the ball and fill the background, and move the mouse to achieve human-computer interaction to find whether the player win or lose!

基于opengl的类似模拟乒乓球的系统。glut交互。无光照。采用opengl中最简单的几何体。方便初学者学习！-table tennis opengl-based systems. glut interaction. No light. Using opengl most simple geometry. Easy for beginners to learn!

键盘控制opengl模型运动，人机交互的小例子-opengl motion