使用MFC编写的图像绘制软件，实现了画直线、连续直线、多边形区域、圆、圆形区域等功能，是学习计算机图形学的不错参考资料。-Use MFC to prepare the image rendering software, achieved a draw a straight line, continuous line, polygon area, round, round of regional and other functions, is a good reference to learn c