diff --git a/problems/0226.翻转二叉树.md b/problems/0226.翻转二叉树.md
index a3ebe24d..af5b8043 100644
--- a/problems/0226.翻转二叉树.md
+++ b/problems/0226.翻转二叉树.md
@@ -368,9 +368,7 @@ func invertTree(root *TreeNode) *TreeNode {
     if root ==nil{
         return nil
     }
-    temp:=root.Left
-    root.Left=root.Right
-    root.Right=temp
+    root.Left,root.Right=root.Right,root.Left//交换
     
     invertTree(root.Left)
     invertTree(root.Right)