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地图数据服务提供了一套获取城市信息列表、检测离线数据状态、下载或更新离线数据等功能相关的接口,用于离线数据管理。
地图数据服务提供了两种更新模式:
1)云端下载,需要与云端通信,在线联网是必要的;
2)U盘升级,需要在U盘放置离线数据;