VC6++编译通过，手动编辑绘制简单直线、圆、多边形、文本，以及复杂的节点、网络。另外还有放大、缩小、返回上一屏幕、绘制整幅图像的功能。是学习MFC、GDI的还材料。-VC6++ compiler through manually editing a simple straight-line drawing, circle, polygon, text, and complex nodes, network. There are also magnified, reduced, return t