diff --git a/docs/notes/Java 虚拟机.md b/docs/notes/Java 虚拟机.md
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--- a/docs/notes/Java 虚拟机.md	
+++ b/docs/notes/Java 虚拟机.md	
@@ -25,36 +25,13 @@
     * [类加载器分类](#类加载器分类)
     * [双亲委派模型](#双亲委派模型)
     * [自定义类加载器实现](#自定义类加载器实现)
-* [参考资料](#参考资料)
-    * [本地方法栈](#本地方法栈)
-    * [堆](#堆)
-    * [方法区](#方法区)
-    * [运行时常量池](#运行时常量池)
-    * [直接内存](#直接内存)
-* [二、垃圾收集](#二垃圾收集)
-    * [判断一个对象是否可被回收](#判断一个对象是否可被回收)
-    * [引用类型](#引用类型)
-    * [垃圾收集算法](#垃圾收集算法)
-    * [垃圾收集器](#垃圾收集器)
-* [三、内存分配与回收策略](#三内存分配与回收策略)
-    * [Minor GC 和 Full GC](#minor-gc-和-full-gc)
-    * [内存分配策略](#内存分配策略)
-    * [Full GC 的触发条件](#full-gc-的触发条件)
-* [四、类加载机制](#四类加载机制)
-    * [类的生命周期](#类的生命周期)
-    * [类加载过程](#类加载过程)
-    * [类初始化时机](#类初始化时机)
-    * [类与类加载器](#类与类加载器)
-    * [类加载器分类](#类加载器分类)
-    * [双亲委派模型](#双亲委派模型)
-    * [自定义类加载器实现](#自定义类加载器实现)
 * [参考资料](#参考资料)
 <!-- GFM-TOC -->
 
 
 # 一、运行时数据区域
 
-<div align="center"> <img src="pics/14ab3de0-0d48-4466-9ea7-90b9be822034_200.png" width="500px"> </div><br>
+<div align="center"> <img src="pics/83e9c5ed-35a1-41fd-b0dd-ce571969b5f3_200.png" width="500px"> </div><br>
 
 ## 程序计数器
 
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