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															@@ -10,6 +10,11 @@ class _User { 
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															     + age: Number  
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															     + age: Number  
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															     + email: String 
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															     + email: String 
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															     + avatar: String 
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															     + avatar: String 
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															+    + teacherId: String 
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															+    + studentId: String 
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															+    + identity: String 
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															+    + school: String 
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															+    + department: String 
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															 } 
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															 class ChatPartner { 
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															 class ChatPartner { 
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															     + objectId: String 
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															     + objectId: String 
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															@@ -38,40 +43,25 @@ class ChatEvaluate{ 
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															     + rating:Number 
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															     + rating:Number 
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															     + user: Pointer<User>  
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															     + user: Pointer<User>  
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															 } 
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															-class PsychologicalCommunity { 
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															-    + communityID: String  
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															-    + topic: String  
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															-} 
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															-class PsychologicalActivity { 
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															-    + activityID: String 
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															-    + title: String  
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															-    + description: String 
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															-    + date: Date  
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															-    + location: String  
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															-} 
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															-class PsychologicalSurvey { 
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															-    + surveyID: String 
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															-    + content: String 
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															-    + publisher: SchoolAdmin 
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															-    + responses: List 
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															-} 
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															-class SchoolAdmin { 
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															-    + adminID: String 
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															-    + name: String 
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															-    + email: String 
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															+class Survey { 
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															+    + objectId: String 
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															+    + link: String 
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															+    + title: String 
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															+    + audience: String 
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															 } 
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															 } 
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															-class Bottle { 
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															+class DriftBottle { 
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															     + bottleID: String 
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															     + bottleID: String 
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															     + content: String 
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															     + content: String 
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															-    + author: User 
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															-    + timestamp: Date 
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															+    + username: String 
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															+    + throwtime: String 
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															+    + catcher: String 
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															+    + catchtime: String 
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															+    + status: String 
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															 } 
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															 } 
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															-_User "1" -- "0..*" PsychologicalCommunity 
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															-PsychologicalActivity "1" -- "0..*" _User 
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															-SchoolAdmin "1" -- "0..*" PsychologicalActivity 
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															-SchoolAdmin "1" -- "0..*" PsychologicalSurvey 
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															-PsychologicalSurvey "1" -- "0..*" _User 
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															-_User "1" -- "0..*" Bottle 
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															+Survey "1" -- "0..*" _User 
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															+_User "1" -- "0..*" DriftBottle 
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															 _User "*" --> "*" ChatEvaluate 
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															 _User "*" --> "*" ChatEvaluate 
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															 _User "1" --> "*" ChatRecord      
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															 _User "1" --> "*" ChatRecord      
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															 ChatPartner "1" --> "*" ChatRecord  
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															 ChatPartner "1" --> "*" ChatRecord  
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															@@ -155,15 +145,20 @@ repeat while (回复消息) 
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															 # 用例图 
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															 # 用例图 
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															 ```plantuml 
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															 ```plantuml 
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															 @startuml 
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															 @startuml 
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															-actor 学生用户 
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															-actor 学校管理员 
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															+actor 用户 
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															 rectangle "心理社区" { 
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															 rectangle "心理社区" { 
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															-    学生用户 -- (填写心理普查问卷) 
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															-    学生用户 -- (使用心理测试) 
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															-    学校管理员 -- (发布心理普查问卷) 
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															-    学校管理员 -- (发布心理活动通知) 
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															-    学校管理员 -- (设置星标用户) 
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															+    用户 -- (使用心理普查) 
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															+    用户 -- (使用漂流瓶) 
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															+} 
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															+rectangle "使用心理普查"{ 
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															+    用户 -- (填写问卷) 
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															+    用户 -- (发布问卷) 
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															+} 
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															+rectangle "使用漂流瓶"{ 
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															+    用户 -- (扔漂流瓶) 
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															+    用户 -- (捞漂流瓶) 
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															 } 
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															 } 
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															 @enduml 
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															 @enduml 
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															@@ -173,7 +168,7 @@ rectangle "心理社区" { 
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															 ```mermaid 
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															 ```mermaid 
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															 sequenceDiagram 
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															 sequenceDiagram 
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															-    participant Admin as 学校管理员 
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															+    participant Admin as 老师用户 
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															     participant Student as 学生用户 
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															     participant Student as 学生用户 
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															     participant System as 系统 
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															     participant System as 系统 
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															@@ -181,13 +176,9 @@ sequenceDiagram 
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															     Student->>System: 填写心理普查问卷 
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															     Student->>System: 填写心理普查问卷 
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															     System->>Admin: 收集问卷结果 
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															     System->>Admin: 收集问卷结果 
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															     Admin->>System: 分析问卷结果 
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															     Admin->>System: 分析问卷结果 
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															-    alt 心理健康有问题的学生人数达到阈值 
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															-        System->>Admin: 发布心理团辅 
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															-        System->>Student: 升级为心理星标用户 
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															-    end 
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															+     
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															     Admin->>System: 制定后续心理活动 
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															     Admin->>System: 制定后续心理活动 
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															-    System->>Student: 通知学生参与活动 
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															-    Student->>System: 使用心理测试 
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															+     
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															 ``` 
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															 ``` 
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															 # 活动图 
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															 # 活动图 
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