diff --git a/students/1714080902639/lab3.md b/students/1714080902639/lab3.md
index 5dc6814f03..7c2b88888c 100644
--- a/students/1714080902639/lab3.md
+++ b/students/1714080902639/lab3.md
@@ -27,5 +27,5 @@
 图1. 添加路由器活动图  
 ![启用活动图](./lab3_ActivityDiagram2.jpg)  
 图2. 启用路由器活动图  
-![删除活动图](./lab3_ActivityDiagram3.jpg)  
+![删除活动图](./lab3_ActivityDiagram5.jpg)  
 图3. 删除路由器活动图  
diff --git a/students/1714080902639/lab3_ActivityDiagram3.jpg b/students/1714080902639/lab3_ActivityDiagram3.jpg
deleted file mode 100644
index 905fbf3d2b..0000000000
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diff --git a/students/1714080902639/lab3_ActivityDiagram5.jpg b/students/1714080902639/lab3_ActivityDiagram5.jpg
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diff --git a/students/1714080902639/lab4.md b/students/1714080902639/lab4.md
index 49d8c5bf0e..de3f6db85b 100644
--- a/students/1714080902639/lab4.md
+++ b/students/1714080902639/lab4.md
@@ -14,23 +14,23 @@
 ## 三、实验步骤  
   
 1. 创建添加路由器的类图  
-2. 根据MVC创建四个类，分别是添加路由器控制器、路由器信息、管理列表页面、添加路由器页面  
-3. 然后给4个类添加依赖关系  
+2. 根据MVC创建五个类，分别是添加路由器控制器、路由器、管理列表页面、添加路由器页面、管理员  
+3. 然后用依赖线连接添加路由器控制器和其他类，使用聚合线连接管理员和路由器  
 4. 创建启用路由器的类图  
-5. 创建三个类，分别是路由器状态、启用路由器控制器、管理列表页面  
-6. 给3个类添加依赖关系  
+5. 创建四个类，分别是路由器、启用路由器控制器、管理列表页面、管理员  
+6. 用依赖线连接启用路由器控制器和其他类，使用聚合线连接管理员和路由器 
 7. 修改用例规约  
 8. 创建删除路由器的类图  
-9. 创建三个类，分别是路由器信息、删除路由器控制器、删除路由器页面  
-10. 给3个类添加依赖关系  
+9. 创建四个类，分别是路由器、删除路由器控制器、删除路由器页面、管理员  
+10. 用依赖线连接删除路由器控制器和其他类，使用聚合线连接管理员和路由器
 
 ## 实验结果 
   
-![添加类图](./tianjia.jpg)  
+![添加类图](./tianjia1.jpg)  
 图1：添加路由器的类图  
   
-![启用类图](./qiyong.jpg)  
+![启用类图](./qiyong1.jpg)  
 图2：启用路由器的类图  
 
-![删除类图](./shanchu.jpg)  
+![删除类图](./shanchu1.jpg)  
 图3：删除路由器的类图  
diff --git a/students/1714080902639/qiyong.jpg b/students/1714080902639/qiyong.jpg
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