标签:write 变换 elf describe __init__ 返回 输入 nod solution
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)
标签:write 变换 elf describe __init__ 返回 输入 nod solution
原文地址:https://www.cnblogs.com/277223178dudu/p/10447184.html