From ca89ca30975554cd3130eb6a2f6101c80723f99f Mon Sep 17 00:00:00 2001
From: eeee0717 <chentao020717Work@outlook.com>
Date: Mon, 27 Nov 2023 10:16:15 +0800
Subject: [PATCH] =?UTF-8?q?Update=200700.=E4=BA=8C=E5=8F=89=E6=90=9C?=
 =?UTF-8?q?=E7=B4=A2=E6=A0=91=EF=BC=8C=E6=B7=BB=E5=8A=A0C#?=
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---
 problems/0700.二叉搜索树中的搜索.md | 22 ++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git 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
index bc21bab8..65e69219 100644
--- 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
@@ -464,6 +464,28 @@ impl Solution {
     }
 }
 ```
+### C#
+```C#
+// 递归
+public TreeNode SearchBST(TreeNode root, int val)
+{
+    if (root == null || root.val == val) return root;
+    if (root.val > val) return SearchBST(root.left, val);
+    if (root.val < val) return SearchBST(root.right, val);
+    return null;
+}
+//  迭代
+public TreeNode SearchBST(TreeNode root, int val)
+{
+    while (root != null)
+    {
+        if (root.val > val) root = root.left;
+        else if (root.val < val) root = root.right;
+        else return root;
+    }
+    return null;
+}
+```
 
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