GDI+提供从简单到复杂图形绘制的大量方法，并且我们可以通过对路径和区域的操作构造出更复杂的图形，这在CAD等场合极为有用。当然，在绘图之前我们有必要搞清一些基本内容，如坐标空间、画笔和画刷等。-GDI+ From simple to complex graphics rendering of a large number of methods, and we can through the path and the operation of the regional structure of more complex graphics, CAD, etc. This is extremely useful occasions. Of course, in the drawing before it is necessary for us to understand some basic elements, such as the coordinates of space, such as brushes and paint brushes.