本程序适用于Gps坐标系和北京54或西安坐标系的转换，也可以应用与Gps坐标系和Cgs2000坐标系的坐标转换。-the procedures applicable to the PON coordinates and Beijing or Xi'an 54 coordinate system conversion, and the application can also coordinates and PON Cgs2000 coordinates the coordinate tr