说明：  利用vc中的mapobject插件实现对地图的基本操作，如放大缩小，鼠标变形，几何查询，属性查询，鹰眼视图等。同时附带文档中提到的所需的头文件。
(Plug-in mapobject using vc map to achieve the basic operations such as zoom, mouse deformation, geometric query, attribute query, view, etc. Eagle Eye. At the same time with the required documents mentioned in the header files.)