diff --git a/06：集合框架/02.md b/06：集合框架/02.md
index 00a86a1..46a7679 100644
--- a/06：集合框架/02.md
+++ b/06：集合框架/02.md
@@ -118,7 +118,9 @@ public class CountKeywords {
 
 ![image-20230402203548339](img/image-20230402203548339.png)
 
+引用网上一个比较完整的类图：[容器框架概述](https://blog.csdn.net/WZD2012/article/details/73245493)
 
+![map](img/map.jpeg)
 
 ![image-20230402203619454](img/image-20230402203619454.png)
 
diff --git a/06：集合框架/img/map.jpeg b/06：集合框架/img/map.jpeg
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