本程序实现了地图的基本操作功能,包括各种地图数据的加载、保存，操作中常用的缩放、移动，数据视图、鹰眼、布局视图的同步，TOC右键菜单及其他一些常见的功能。(The program implements the basic operational functions of the map, including the loading and saving of various map data, the common zooming, moving, data view, Hawk Eye, la