这是在vc环境下编写的一个奥运五环，实现了颜色的分配与填充-This is written in a context vc the Olympic rings, to achieve the color distribution and filling

在窗口中画一个旋转的风车，风车中有三个叶片，颜色分布为红黄篮，叶片外侧有个外接圆。-Painting in the window of a rotating windmill, windmill has three blades, the color distribution of red, yellow basket, outer leaves have a circumcircle.