使用C＃编程实现的地图编辑器，实现对点线面三要素的矢量绘图，和画笔的颜色编辑，以及对图形的方法缩小等功能。-The use of C# programming realize the map editor, realize on the spots and lines to cover the three elements of the vector graphics, and brush the color editing, as well as ways to reduce the grap