diff --git a/codes/cpp/chapter_tree/binary_search_tree.cpp b/codes/cpp/chapter_tree/binary_search_tree.cpp
index 78e797746..006d7d308 100644
--- a/codes/cpp/chapter_tree/binary_search_tree.cpp
+++ b/codes/cpp/chapter_tree/binary_search_tree.cpp
@@ -133,7 +133,7 @@ int main() {
     PrintUtil::printTree(bst->getRoot());
 
     /* 查找结点 */
-    TreeNode* node = bst->search(5);
+    TreeNode* node = bst->search(7);
     cout << endl << "查找到的结点对象为 " << node << "，结点值 = " << node->val << endl;
 
     /* 插入结点 */
diff --git a/codes/csharp/chapter_tree/binary_search_tree.cs b/codes/csharp/chapter_tree/binary_search_tree.cs
index d2e5f95e6..e12cdd425 100644
--- a/codes/csharp/chapter_tree/binary_search_tree.cs
+++ b/codes/csharp/chapter_tree/binary_search_tree.cs
@@ -159,7 +159,7 @@ namespace hello_algo.chapter_tree
             PrintUtil.PrintTree(bst.getRoot());
 
             /* 查找结点 */
-            TreeNode? node = bst.search(5);
+            TreeNode? node = bst.search(7);
             Console.WriteLine("\n查找到的结点对象为 " + node + "，结点值 = " + node.val);
 
             /* 插入结点 */
diff --git a/codes/go/chapter_tree/binary_search_tree_test.go b/codes/go/chapter_tree/binary_search_tree_test.go
index 877f1b541..2109d5a44 100644
--- a/codes/go/chapter_tree/binary_search_tree_test.go
+++ b/codes/go/chapter_tree/binary_search_tree_test.go
@@ -20,8 +20,8 @@ func TestBinarySearchTree(t *testing.T) {
 	fmt.Println("\n二叉树的根结点为:", node.Val)
 
 	// 查找结点
-	node = bst.search(5)
-	fmt.Println("\n查找到的结点对象为", node, "，结点值 =", node.Val)
+	node = bst.Search(7)
+	fmt.Println("查找到的结点对象为", node, "，结点值 =", node.Val)
 
 	// 插入结点
 	node = bst.insert(16)
diff --git a/codes/java/chapter_tree/binary_search_tree.java b/codes/java/chapter_tree/binary_search_tree.java
index 4a7f3194e..a3b0f7584 100644
--- a/codes/java/chapter_tree/binary_search_tree.java
+++ b/codes/java/chapter_tree/binary_search_tree.java
@@ -131,7 +131,7 @@ public class binary_search_tree {
         PrintUtil.printTree(bst.getRoot());
 
         /* 查找结点 */
-        TreeNode node = bst.search(5);
+        TreeNode node = bst.search(7);
         System.out.println("\n查找到的结点对象为 " + node + "，结点值 = " + node.val);
 
         /* 插入结点 */
diff --git a/codes/javascript/chapter_tree/binary_search_tree.js b/codes/javascript/chapter_tree/binary_search_tree.js
index c00d8bea8..9c808aaae 100644
--- a/codes/javascript/chapter_tree/binary_search_tree.js
+++ b/codes/javascript/chapter_tree/binary_search_tree.js
@@ -126,7 +126,7 @@ console.log("\n初始化的二叉树为\n");
 printTree(getRoot());
 
 /* 查找结点 */
-let node = search(5);
+let node = search(7);
 console.log("\n查找到的结点对象为 " + node + "，结点值 = " + node.val);
 
 /* 插入结点 */
diff --git a/codes/python/chapter_tree/binary_search_tree.py b/codes/python/chapter_tree/binary_search_tree.py
index 2a8272761..8817d4a5a 100644
--- a/codes/python/chapter_tree/binary_search_tree.py
+++ b/codes/python/chapter_tree/binary_search_tree.py
@@ -142,7 +142,7 @@ if __name__ == "__main__":
     print_tree(bst.root)
 
     # 查找结点
-    node = bst.search(5)
+    node = bst.search(7)
     print("\n查找到的结点对象为: {}，结点值 = {}".format(node, node.val))
 
     # 插入结点
diff --git a/codes/typescript/chapter_tree/binary_search_tree.ts b/codes/typescript/chapter_tree/binary_search_tree.ts
index a99e6ba26..9adf8cd15 100644
--- a/codes/typescript/chapter_tree/binary_search_tree.ts
+++ b/codes/typescript/chapter_tree/binary_search_tree.ts
@@ -150,7 +150,7 @@ console.log('\n初始化的二叉树为\n');
 printTree(getRoot());
 
 /* 查找结点 */
-let node = search(5);
+let node = search(7);
 console.log('\n查找到的结点对象为 ' + node + '，结点值 = ' + node!.val);
 
 /* 插入结点 */