一个简单的使用OpenGL绘制五星红旗的程序，适合初学者了解最基础的图形绘制和运作机制。需预先安装GLUT库。-A simple use OpenGL flag program, suitable for beginners to understand the most basic graphics rendering and operating mechanisms. GLUT libraries need to be pre-installed.

应用python，用Python turtle绘制一个五星红旗图(Apply python, draw a five-star red flag with Python turtle)