VC++源码实现一个绘图小程序，可画一些简单的图形，比如边框矩形、边框圆形和自定义图形，并不能填充颜色，只是很基础的绘制图形示例-VC++ source code to achieve a drawing program, can draw some simple graphics, such as the border of the rectangular fr a me, circular and custom graphics, can not fill color, only a ver