实现了，画三角形，多边形，，并且可以检查碰撞，点击移动中的多边形可以实现填充色彩的功能，就像屏保泡泡球一样子-Achieved, drawing triangles, polygons, and can check the collision, click on a moving polygon fill color features can be achieved, like screen savers like a bubble ball

直线的生成 圆的生成 椭圆的生成 多边形扫描转换与区域填充 字符的生成 -The formation of a straight line generated ellipse circle generated polygon scan conversion and the formation of regional fill character

小型绘图系统，直线，圆形，椭圆，多边形，以及图形的填充-Small graphics systems complete source code integrity of the source code of small drawing system systems complete source systems complete source