这是用openGL+VS编写的三维梯形 并且梯形上有直线 还有动点在直线上运动 调试前请确保VS的openGL环境已搭建 不会的百度下-It is written in three-dimensional trapezoid with openGL+VS straight there and have fixed points on the linear motion before commissioning make sure the VS openGL environment is buil