这是我做的VC++课程设计，主要实现对图形的操作，如图层，多边形，弧形，圆，直线等的操作，并显示图层信息和实体信息。-This is what I do VC++ program design, the main achievement of graphics operations, such as layers, polygons, arcs, circles, lines and other operations, and display the layer information and