一个OpenGL的编程简单例子,初学者看一看，c++平台上运行，有兴趣可以看看，主要实现画矩形和右击鼠标出现菜单，按 q 实现退出，代码只有几十行。 -OpenGL programming a simple example, take a look at the beginner, c++ Platforms are interested can see that the main draw rectangular and right-