看到一辆双层巴士，按l键可以开启灯光，按o键关闭灯光。简单的opengl练习程序-See a double-decker bus, press l can turn on lights, press o key to turn off the lights. Simple opengl exercises procedures

基于C++和OpenGL开发的夜晚模拟场景。该程序描绘了一安详的夜晚。静静的夜晚，靛色的天空，月明星稀，小屋的灯关了，屋里的人睡了，屋前的小石凳空着，唯一的声音只来自屋前的一口喷泉。-Simulation scenarios developed based on C++ and OpenGL night. The program depicts a serene night. Quiet night, indigo-colored sky, Yuemingxingxi, cabin lights