LeetCode_二叉树_简单_145.二叉树的后序遍历

星许辰发布时间：2022-03-27 10:45:32 ，浏览量：0

1.题目
2.思路
3.代码实现（Java）

1.题目

给你一棵二叉树的根节点 root ，返回其节点值的后序遍历。

示例 1：在这里插入图片描述输入：root = [1,null,2,3] 输出：[3,2,1]

示例 2：输入：root = [] 输出：[]

示例 3：输入：root = [1] 输出：[1]

提示：树中节点的数目在范围 [0, 100] 内 -100

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LeetCode_二叉树_简单_145.二叉树的后序遍历

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