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.
它踩中了时代最甜的红利，用流量缔造了神话，却在红利退潮后，暴露了品牌的底层缺陷。。下载安装 谷歌浏览器 开启极速安全的 上网之旅。对此有专业解读
，这一点在谷歌浏览器【最新下载地址】中也有详细论述
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人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用。夫子对此有专业解读