用C#写的绘图程序，可以实现画、读取、存储点线面。并对图形进行缩放、拉伸、平移等操作。更重要的是，实现了图形的橡皮绘制效果！-Written in c# drawing program, can realize the painting, read the save point, line and plane. And the graph, stretching, such as the translation of the scale operation. More important, re