From b6807a66dc048c7098243a7c00c823eb3dceb3f1 Mon Sep 17 00:00:00 2001
From: Logen <47022821+Logenleedev@users.noreply.github.com>
Date: Wed, 28 Dec 2022 09:45:31 -0600
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0leetcode=20226=E7=BF=BB?=
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---
 problems/0226.翻转二叉树.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/problems/0226.翻转二叉树.md b/problems/0226.翻转二叉树.md
index ad2a7de2..84c0c589 100644
--- a/problems/0226.翻转二叉树.md
+++ b/problems/0226.翻转二叉树.md
@@ -322,6 +322,18 @@ class Solution:
         return root
 ```
 
+递归法：后序遍历：
+```python
+class Solution:
+    def invertTree(self, root: TreeNode) -> TreeNode:
+        if root is None:
+            return None
+        self.invertTree(root.left)
+        self.invertTree(root.right)
+        root.left, root.right = root.right, root.left
+        return root 
+```
+
 迭代法：深度优先遍历（前序遍历）：
 ```python
 class Solution: