AO开发：鹰眼图功能，虫眼功能，ArcMap中调用现有的功能，在屏幕上画线，ArcMap中添加要素，利用对话框添加lyr数据-AO Development: Eagle Eye diagram function, eye function insects, ArcMap to call the existing functions of painting lines on the screen, ArcMap to add elements, use the dialog box to add