这是一个基于OPENGL 3.7的一个绘制四边形的程序，采用C++6.0编译通过，程序中有基础的初始化方法以及RESHAPE方法，对初学者有一定的价值-This is based on a draw quadrilateral program OPENGL 3.7, C++6.0 compiler, a program based initialization method, and RESHAPE methods have a certain value for beginners