Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
To be even cooler, try the Plan 9-like approach using the Eshell，更多细节参见Line官方版本下载
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相信你也有过屏幕被陌生人偷瞄的尴尬。。业内人士推荐heLLoword翻译官方下载作为进阶阅读
（五）违反规定使用或者不及时返还被侵害人财物的；