在mfc的基础上实现opengl的基本功能，前几个实验分别实现了画图的基本功能。后几个是opengl的实验。全是在mfc的编译环境上写的，适用于初学者。-Opengl mfc based on the basic functions of the first few experiments to achieve the basic functions of the drawing. After several opengl experiment. All written on mfc compi