题目描述
操作给定的二叉树，将其变换为源二叉树的镜像。
/**
public class TreeNode {
int val = 0;
TreeNode left = null;
TreeNode right = null;
public TreeNode(int val) {
this.val = val;
}
}
*/
public class Solution {
public void Mirror(TreeNode root) {
if(root==null) return;
TreeNode left = root.left;
TreeNode right = root.right;
root.left = right;
root.right = left;
Mirror(left);
Mirror(right);
}
}
