国内坐标都是经过偏移算法的，国内坐标与国际坐标的互换(The domestic coordinates are all interchanged through the migration algorithm, the domestic coordinates and the international coordinates)

国标坐标转为高德坐标的VB源代码，以便使用高德API的朋友使用。借花献佛。(coordinate transformation)

地址转换经纬度的好用工具，可转换高德、百度、腾讯等坐标，免费实用。(Address translation to latitude and longitude, which can be converted to Gaode, Baidu, Tencent and other coordinates, free and practical.)