diff --git a/codes/cpp/chapter_tree/binary_tree_bfs.cpp b/codes/cpp/chapter_tree/binary_tree_bfs.cpp
index c3694eb9c..8b2ba2d2e 100644
--- a/codes/cpp/chapter_tree/binary_tree_bfs.cpp
+++ b/codes/cpp/chapter_tree/binary_tree_bfs.cpp
@@ -7,7 +7,7 @@
 #include "../include/include.hpp"
 
 /* 层序遍历 */
-vector<int> hierOrder(TreeNode* root) {
+vector<int> levelOrder(TreeNode* root) {
     // 初始化队列，加入根结点
     queue<TreeNode*> queue;
     queue.push(root);
@@ -35,7 +35,7 @@ int main() {
     PrintUtil::printTree(root);
 
     /* 层序遍历 */
-    vector<int> vec = hierOrder(root);
+    vector<int> vec = levelOrder(root);
     cout << endl << "层序遍历的结点打印序列 = ";
     PrintUtil::printVector(vec);
 
diff --git a/codes/csharp/chapter_tree/binary_tree_bfs.cs b/codes/csharp/chapter_tree/binary_tree_bfs.cs
index 0cbbf62f5..2edd07eef 100644
--- a/codes/csharp/chapter_tree/binary_tree_bfs.cs
+++ b/codes/csharp/chapter_tree/binary_tree_bfs.cs
@@ -13,7 +13,7 @@ public class binary_tree_bfs
 {
 
     /* 层序遍历 */
-    public List<int> hierOrder(TreeNode root)
+    public List<int> levelOrder(TreeNode root)
     {
         // 初始化队列，加入根结点
         Queue<TreeNode> queue = new();
@@ -41,7 +41,7 @@ public class binary_tree_bfs
         Console.WriteLine("\n初始化二叉树\n");
         PrintUtil.PrintTree(root);
 
-        List<int> list = hierOrder(root);
+        List<int> list = levelOrder(root);
         Console.WriteLine("\n层序遍历的结点打印序列 = " + string.Join(",", list.ToArray()));
     }
 }
diff --git a/codes/go/chapter_tree/binary_tree_bfs.go b/codes/go/chapter_tree/binary_tree_bfs.go
index c10f618e0..8ec46fbe7 100644
--- a/codes/go/chapter_tree/binary_tree_bfs.go
+++ b/codes/go/chapter_tree/binary_tree_bfs.go
@@ -11,7 +11,7 @@ import (
 )
 
 /* 层序遍历 */
-func hierOrder(root *TreeNode) []int {
+func levelOrder(root *TreeNode) []int {
 	// 初始化队列，加入根结点
 	queue := list.New()
 	queue.PushBack(root)
diff --git a/codes/go/chapter_tree/binary_tree_bfs_test.go b/codes/go/chapter_tree/binary_tree_bfs_test.go
index eafd51bcc..7b1bbf1f5 100644
--- a/codes/go/chapter_tree/binary_tree_bfs_test.go
+++ b/codes/go/chapter_tree/binary_tree_bfs_test.go
@@ -11,7 +11,7 @@ import (
 	. "github.com/krahets/hello-algo/pkg"
 )
 
-func TestHierOrder(t *testing.T) {
+func TestLevelOrder(t *testing.T) {
 	/* 初始化二叉树 */
 	// 这里借助了一个从数组直接生成二叉树的函数
 	root := ArrToTree([]any{1, 2, 3, 4, 5, 6, 7})
@@ -19,6 +19,6 @@ func TestHierOrder(t *testing.T) {
 	PrintTree(root)
 
 	// 层序遍历
-	nums := hierOrder(root)
+	nums := levelOrder(root)
 	fmt.Println("\n层序遍历的结点打印序列 =", nums)
 }
diff --git a/codes/java/chapter_tree/binary_tree_bfs.java b/codes/java/chapter_tree/binary_tree_bfs.java
index 578ed2b81..246921dc6 100644
--- a/codes/java/chapter_tree/binary_tree_bfs.java
+++ b/codes/java/chapter_tree/binary_tree_bfs.java
@@ -11,7 +11,7 @@ import java.util.*;
 
 public class binary_tree_bfs {
     /* 层序遍历 */
-    static List<Integer> hierOrder(TreeNode root) {
+    static List<Integer> levelOrder(TreeNode root) {
         // 初始化队列，加入根结点
         Queue<TreeNode> queue = new LinkedList<>() {{ add(root); }};
         // 初始化一个列表，用于保存遍历序列
@@ -35,7 +35,7 @@ public class binary_tree_bfs {
         PrintUtil.printTree(root);
 
         /* 层序遍历 */
-        List<Integer> list = hierOrder(root);
+        List<Integer> list = levelOrder(root);
         System.out.println("\n层序遍历的结点打印序列 = " + list);
     }
 }
diff --git a/codes/javascript/chapter_tree/binary_tree_bfs.js b/codes/javascript/chapter_tree/binary_tree_bfs.js
index 008ace0ad..c400853ea 100644
--- a/codes/javascript/chapter_tree/binary_tree_bfs.js
+++ b/codes/javascript/chapter_tree/binary_tree_bfs.js
@@ -8,7 +8,7 @@ const { arrToTree } = require("../include/TreeNode");
 const { printTree } = require("../include/PrintUtil");
 
 /* 层序遍历 */
-function hierOrder(root) {
+function levelOrder(root) {
     // 初始化队列，加入根结点
     let queue = [root];
     // 初始化一个列表，用于保存遍历序列
@@ -33,5 +33,5 @@ console.log("\n初始化二叉树\n");
 printTree(root);
 
 /* 层序遍历 */
-let list = hierOrder(root);
+let list = levelOrder(root);
 console.log("\n层序遍历的结点打印序列 = " + list);
diff --git a/codes/python/chapter_tree/binary_tree_bfs.py b/codes/python/chapter_tree/binary_tree_bfs.py
index 657fd51da..dff32bd82 100644
--- a/codes/python/chapter_tree/binary_tree_bfs.py
+++ b/codes/python/chapter_tree/binary_tree_bfs.py
@@ -10,7 +10,7 @@ from include import *
 
 
 """ 层序遍历 """
-def hier_order(root: Optional[TreeNode]):
+def level_order(root: Optional[TreeNode]):
     # 初始化队列，加入根结点
     queue = collections.deque()
     queue.append(root)
@@ -35,6 +35,6 @@ if __name__ == "__main__":
     print_tree(root)
 
     # 层序遍历
-    res = hier_order(root)
+    res = level_order(root)
     print("\n层序遍历的结点打印序列 = ", res)
     assert res == [1, 2, 3, 4, 5, 6, 7]
diff --git a/codes/swift/chapter_tree/binary_tree_bfs.swift b/codes/swift/chapter_tree/binary_tree_bfs.swift
index a0aa3cd00..326214a92 100644
--- a/codes/swift/chapter_tree/binary_tree_bfs.swift
+++ b/codes/swift/chapter_tree/binary_tree_bfs.swift
@@ -7,7 +7,7 @@
 import utils
 
 /* 层序遍历 */
-func hierOrder(root: TreeNode) -> [Int] {
+func levelOrder(root: TreeNode) -> [Int] {
     // 初始化队列，加入根结点
     var queue: [TreeNode] = [root]
     // 初始化一个列表，用于保存遍历序列
@@ -36,7 +36,7 @@ enum BinaryTreeBFS {
         PrintUtil.printTree(root: node)
 
         /* 层序遍历 */
-        let list = hierOrder(root: node)
+        let list = levelOrder(root: node)
         print("\n层序遍历的结点打印序列 = \(list)")
     }
 }
diff --git a/codes/typescript/chapter_tree/binary_tree_bfs.ts b/codes/typescript/chapter_tree/binary_tree_bfs.ts
index f723e0486..83fba5c8b 100644
--- a/codes/typescript/chapter_tree/binary_tree_bfs.ts
+++ b/codes/typescript/chapter_tree/binary_tree_bfs.ts
@@ -9,7 +9,7 @@ import { arrToTree } from '../module/TreeNode';
 import { printTree } from '../module/PrintUtil';
 
 /* 层序遍历 */
-function hierOrder(root: TreeNode | null): number[] {
+function levelOrder(root: TreeNode | null): number[] {
     // 初始化队列，加入根结点
     const queue = [root];
     // 初始化一个列表，用于保存遍历序列
@@ -35,7 +35,7 @@ console.log('\n初始化二叉树\n');
 printTree(root);
 
 /* 层序遍历 */
-const list = hierOrder(root);
+const list = levelOrder(root);
 console.log('\n层序遍历的结点打印序列 = ' + list);
 
 export {};
diff --git a/codes/zig/chapter_tree/binary_tree_bfs.zig b/codes/zig/chapter_tree/binary_tree_bfs.zig
index eaa0d0d5a..dc0cb6720 100644
--- a/codes/zig/chapter_tree/binary_tree_bfs.zig
+++ b/codes/zig/chapter_tree/binary_tree_bfs.zig
@@ -6,7 +6,7 @@ const std = @import("std");
 const inc = @import("include");
 
 // 层序遍历
-fn hierOrder(comptime T: type, mem_allocator: std.mem.Allocator, root: *inc.TreeNode(T)) !std.ArrayList(T) {
+fn levelOrder(comptime T: type, mem_allocator: std.mem.Allocator, root: *inc.TreeNode(T)) !std.ArrayList(T) {
     // 初始化队列，加入根结点
     const L = std.TailQueue(*inc.TreeNode(T));
     var queue = L{};
@@ -48,7 +48,7 @@ pub fn main() !void {
     try inc.PrintUtil.printTree(root, null, false);
 
     // 层序遍历
-    var list = try hierOrder(i32, mem_allocator, root.?);
+    var list = try levelOrder(i32, mem_allocator, root.?);
     defer list.deinit();
     std.debug.print("\n层序遍历的结点打印序列 = ", .{});
     inc.PrintUtil.printList(i32, list);