zhuanlan.zhihu.com/p/198274063…
otherwise just advance the cursor，更多细节参见Line官方版本下载
The challenge was clear: achieve a quantum leap in speed while preserving extreme flexibility, minimal storage, regional map support, and dynamic update capabilities. Standard Highway Hierarchies were a starting point, but we needed something more – a uniquely OsmAnd solution.，这一点在旺商聊官方下载中也有详细论述
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