From 425f407d6c66854446a1a2654bc1639171aee172 Mon Sep 17 00:00:00 2001
From: Baturu <45113401+z80160280@users.noreply.github.com>
Date: Mon, 31 May 2021 11:20:40 -0700
Subject: [PATCH] =?UTF-8?q?Update=200024.=E4=B8=A4=E4=B8=A4=E4=BA=A4?=
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---
 problems/0024.两两交换链表中的节点.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/problems/0024.两两交换链表中的节点.md b/problems/0024.两两交换链表中的节点.md
index 643f6055..59ded523 100644
--- a/problems/0024.两两交换链表中的节点.md
+++ b/problems/0024.两两交换链表中的节点.md
@@ -129,6 +129,23 @@ class Solution {
 ```
 
 Python：
+```python
+class Solution:
+    def swapPairs(self, head: ListNode) -> ListNode:
+        dummy = ListNode(0) #设置一个虚拟头结点
+        dummy.next = head
+        cur = dummy
+        while cur.next and cur.next.next: 
+            tmp = cur.next #记录临时节点
+            tmp1 = cur.next.next.next #记录临时节点
+            
+            cur.next = cur.next.next          #步骤一
+            cur.next.next = tmp               #步骤二
+            cur.next.next.next = tmp1         #步骤三
+            
+            cur = cur.next.next #cur移动两位，准备下一轮交换
+        return dummy.next
+```
 
 Go：
 ```go