Update 0700.二叉搜索树中的搜索.md

2021-08-01 10:17:03 -04:00 · 2021-08-01 10:17:03 -04:00 · 2a94d6ca0f
parent a8109b4014
commit 2a94d6ca0f
1 changed files with 6 additions and 0 deletions
--- a/problems/0700.二叉搜索树中的搜索.md
+++ b/problems/0700.二叉搜索树中的搜索.md
@ -212,6 +212,12 @@ Python：
 递归法：

 ```python
+# Definition for a binary tree node.
+# class TreeNode:
+#     def __init__(self, val=0, left=None, right=None):
+#         self.val = val
+#         self.left = left
+#         self.right = right
 class Solution:
    def searchBST(self, root: TreeNode, val: int) -> TreeNode:
        # 为什么要有返回值: