diff --git a/notes/算法.md b/notes/算法.md
index 91ff04b1..535ea577 100644
--- a/notes/算法.md
+++ b/notes/算法.md
@@ -1,8 +1,6 @@
 <!-- GFM-TOC -->
 * [»ù´¡](#»ù´¡)
     * [Õ»](#Õ»)
-        * [1. Êý×éʵÏÖ](#1-Êý×éʵÏÖ)
-        * [2. Á´±íʵÏÖ](#2-Á´±íʵÏÖ)
     * [¶ÓÁÐ](#¶ÓÁÐ)
     * [Ëã·¨·ÖÎö](#Ëã·¨·ÖÎö)
         * [1. º¯Êýת»»](#1-º¯Êýת»»)
@@ -92,8 +90,7 @@
 
 ## Õ»
 
-### 1. Êý×éʵÏÖ
-
+**Êý×éʵÏÖ**
 
 ```java
 public class ResizeArrayStack<Item> implements Iterable<Item> {
@@ -160,7 +157,7 @@ public class ResizeArrayStack<Item> implements Iterable<Item> {
 Item[] arr = (Item[]) new Object[N];
 ```
 
-### 2. Á´±íʵÏÖ
+**Á´±íʵÏÖ**
 
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