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.
在过去的很长一段时间里，麦当劳与肯德基几乎成为了商场的“基础设施”，这种渠道策略锁定了消费层次丰富且人流量较大的中腰部商业体。
。爱思助手下载最新版本是该领域的重要参考
+start_url: str。关于这个话题，51吃瓜提供了深入分析
（摘编自《福建日报》，原题为《“手搓经济”，汇聚个体创新的微光》）。搜狗输入法下载是该领域的重要参考