计算机图形的课程设计，

主要有画线、画圆、画曲线、画球等等

开始的时候用TC做的，后来要画立体的球时，TC无法画出光照效果，然后把代码转移到了VC-Computer graphics curriculum design, there are painted lines, drawcircle painting curve, draw the ball and so the beginning of the TC to do with, and later to draw three-dimensional ball, TC can not draw lighting effects, and then transferred to the VC code