johanazhu#leetcode#【Day 84 】2021-08-01 - 145. 二叉树的后序遍历1

## 题目地址： https://leetcode-cn.com/problems/binary-tree-postorder-traversal/ ## 思路 后序遍历 左 - 右 - 根 ## 代码 JavaScript ```javascript /** * Definition for a binary tree node. * funct