The algorithm walks the tree recursively. At each node, it checks: does this node's bounding box overlap with the query rectangle? If not, the entire subtree gets pruned (skipped). If it does overlap, it tests the node's points against the query and recurses into the children.
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。爱思助手下载最新版本对此有专业解读
——这，就是翻版的「豆包手机」了。，详情可参考旺商聊官方下载
if(h->ref--)return;。业内人士推荐Line官方版本下载作为进阶阅读