From 013ba0575ed1729e8a1c31c251313e379d38adc2 Mon Sep 17 00:00:00 2001
From: evanlai <sky_lmc@foxmail.com>
Date: Sun, 30 May 2021 14:13:38 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200019.=E5=88=A0=E9=99=A4?=
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---
 ...0019.删除链表的倒数第N个节点.md | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/problems/0019.删除链表的倒数第N个节点.md b/problems/0019.删除链表的倒数第N个节点.md
index 7d2fe97e..52735794 100644
--- a/problems/0019.删除链表的倒数第N个节点.md
+++ b/problems/0019.删除链表的倒数第N个节点.md
@@ -112,6 +112,30 @@ class Solution {
     }
 }
 ```
+
+Python:
+```python
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def removeNthFromEnd(self, head: ListNode, n: int) -> ListNode:
+        head_dummy = ListNode()
+        head_dummy.next = head
+
+        slow, fast = head_dummy, head_dummy
+        while(n!=0): #fast先往前走n步
+            fast = fast.next
+            n -= 1
+        while(fast.next!=None):
+            slow = slow.next
+            fast = fast.next
+        #fast 走到结尾后，slow的下一个节点为倒数第N个节点
+        slow.next = slow.next.next #删除
+        return head_dummy.next
+```
 Go:
 ```Go
 /**