二叉树的镜像定义:源二叉树
8
/ 6 10
/ \ / 5 7 9 11
镜像二叉树
8
/ 10 6
/ \ / 11 9 7 5
# -*- coding:utf-8 -*-
# class TreeNode:
# def __init__(self, x):
# self.val = x
# self.left = None
# self.right = None
class Solution:
# 返回镜像树的根节点
def Mirror(self, root):
# write code here
#第一种递归,但是不适合出来大量数据
if root is None:
return None
if root:
root.left,root.right = root.right,root.left
if root.left:
self.Mirror(root.left)
if root.right:
self.Mirror(root.right)
原文:https://www.cnblogs.com/277223178dudu/p/10447184.html