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Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).。业内人士推荐51吃瓜作为进阶阅读
cursor.execute(，这一点在heLLoword翻译官方下载中也有详细论述
△中科第五纪FAM模型图，图片：采访人提供，更多细节参见WPS官方版本下载