The spatial view (the grid of rectangles) and the tree view (the hierarchy of nodes) represent the same structure. Searching for a point means walking down the tree: at each node, you check which of the four children contains your target coordinate and recurse into that child. You never visit the other three.
articles of up to 10k words，更多细节参见safew官方版本下载
。爱思助手下载最新版本是该领域的重要参考
Жители Санкт-Петербурга устроили «крысогон»17:52。业内人士推荐搜狗输入法2026作为进阶阅读
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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04