PPT 生成实测接下来我将按照「操作步骤 - 生成质量 - 单次费用」的顺序依次介绍每个软件，并将 PPT 的缩略图放在末尾。
// 核心逻辑：只有当前时间 栈顶时间 → 无法合并，是新车队（push）
。WPS官方版本下载是该领域的重要参考
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.
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
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