OpenStreetMap全球库 https://www.loveyu.org/5344.html https://www.jianshu.com/p/957aa4a933d7 https://blog.csdn.net/mrib/article/details/79729227 官方下载: https://wiki.openstreetmap.org/wiki/Downloading_data https://planet.openstreetmap.org/ https://www.openstreetmap.org/export