From 89a5587f702a1d43c72d6e6f0ebf33f377ffb1c4 Mon Sep 17 00:00:00 2001
From: p46nuwtki <1577964316@qq.com>
Date: Mon, 27 Oct 2025 11:13:30 +0800
Subject: [PATCH] ADD file via upload

---
 挑战题类图.puml | 148 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 挑战题类图.puml

diff --git a/挑战题类图.puml b/挑战题类图.puml
new file mode 100644
index 0000000..7f2806c
--- /dev/null
+++ b/挑战题类图.puml
@@ -0,0 +1,148 @@
+@startuml 单一职责原则-挑战题类图
+
+skinparam backgroundColor white
+skinparam handwritten false
+skinparam monochrome false
+skinparam shadowing false
+skinparam roundcorner 8
+skinparam defaultFontName Microsoft YaHei
+skinparam defaultFontSize 14
+skinparam packageStyle rectangle
+skinparam package {
+  BackgroundColor LightGray
+  BorderColor Gray
+}
+skinparam class {
+  BackgroundColor White
+  BorderColor Black
+  ArrowColor Black
+}
+skinparam enum {
+  BackgroundColor White
+  BorderColor Black
+}
+
+package "com.company.employee.model" {
+  class Employee {
+    - id: String
+    - name: String
+    - age: int
+    - department: String
+    - salary: double
+    - hireDate: LocalDate
+    - email: String
+    - position: String
+    + getId(): String
+    + getName(): String
+    + getDepartment(): String
+    + getSalary(): double
+  }
+}
+
+package "com.company.employee.history" {
+  enum EmployeeHistory.ChangeType {
+    SALARY_ADJUSTMENT
+    POSITION_CHANGE
+    DEPARTMENT_CHANGE
+    HIRED
+    TERMINATED
+  }
+  
+  class EmployeeHistory {
+    - changeRecords: List<EmployeeChangeRecord>
+    + recordSalaryAdjustment(employee: Employee, oldSalary: double, newSalary: double): void
+    + recordPositionChange(employee: Employee, oldPosition: String, newPosition: String): void
+    + recordDepartmentChange(employee: Employee, oldDepartment: String, newDepartment: String): void
+    + recordHire(employee: Employee): void
+    + recordTermination(employee: Employee, reason: String): void
+    + getEmployeeHistory(employeeId: String): List<EmployeeChangeRecord>
+    + getChangeRecordsByType(changeType: ChangeType): List<EmployeeChangeRecord>
+    + getAllChangeRecords(): List<EmployeeChangeRecord>
+    
+    class EmployeeChangeRecord {
+      - id: String
+      - employeeId: String
+      - changeType: ChangeType
+      - oldValue: String
+      - newValue: String
+      - changeDate: LocalDate
+      - description: String
+      + getters and setters
+    }
+  }
+}
+
+package "com.company.employee.training" {
+  class Course {
+    - courseId: String
+    - title: String
+    - description: String
+    - durationHours: int
+    - instructor: String
+    - prerequisites: List<Course>
+    + Course(courseId, title, description, durationHours, instructor)
+    + addPrerequisite(course: Course): void
+    + removePrerequisite(courseId: String): void
+    + hasPrerequisites(): boolean
+    + getters and setters
+  }
+  
+  class TrainingRecord {
+    - recordId: String
+    - employeeId: String
+    - courseId: String
+    - startDate: LocalDate
+    - completionDate: LocalDate
+    - score: int
+    - grade: String
+    - status: String
+    + TrainingRecord(recordId, employeeId, courseId, startDate)
+    + completeTraining(score: int): void
+    + cancelTraining(reason: String): void
+    + calculateGrade(score: int): String
+    + getTrainingDays(): int
+    + getters and setters
+  }
+  
+  class Certificate {
+    - certificateId: String
+    - employeeId: String
+    - courseId: String
+    - certificateNumber: String
+    - issueDate: LocalDate
+    - expiryDate: LocalDate
+    - status: String
+    + Certificate(certificateId, employeeId, courseId)
+    + generateCertificateNumber(): String
+    + isValid(): boolean
+    + updateStatus(status: String): void
+    + revoke(reason: String): void
+    + renew(days: int): void
+    + getRemainingValidDays(): int
+    + getters and setters
+  }
+  
+  class TrainingSystem {
+    - courses: List<Course>
+    - trainingRecords: List<TrainingRecord>
+    - certificates: List<Certificate>
+    + addCourse(course: Course): void
+    + registerEmployeeForTraining(employeeId: String, courseId: String): TrainingRecord
+    + completeTraining(recordId: String, score: int): TrainingRecord
+    + issueCertificate(employeeId: String, courseId: String): Certificate
+    + getEmployeeTrainingHistory(employeeId: String): List<TrainingRecord>
+    + getEmployeeCertificates(employeeId: String): List<Certificate>
+    + searchCourses(keyword: String): List<Course>
+    + checkCertificateValidity(certificateId: String): boolean
+  }
+}
+
+' 关系定义
+EmployeeHistory --> Employee
+TrainingRecord --> Employee : (隐式，通过employeeId)
+Certificate --> Employee : (隐式，通过employeeId)
+TrainingSystem --> Course
+TrainingSystem --> TrainingRecord
+TrainingSystem --> Certificate
+
+@enduml
\ No newline at end of file