vc实现地图的基本操作，放大，缩小，漫游。读取一定控制格式的文本文件-vc map to achieve the basic operation, magnified, reduced, roaming. Must control the format to read a text file

将GIS数据中的shp矢量文件进行读取，并导出为WTK格式的文本，存储在csv中(The SHP vector file in the GIS data is read, and exported to the WTK format of the text, stored in CSV)