5.28

（一）、设计高校人员信息包，并完成测试

【题目描述】定义一个人员类People，其属性有：姓名、性别、年龄；基于People实现学生类Student，添加属性：学号、入学时间和入学成绩；基于People实现教师类Teacher，添加属性：职务、部门、工作时间；基于Student实现究生类Graduate，添加属性：研究方向和导师，分别定义其中的构造函数和输出函数。程序中定义各种类的对象，并完成测试。 基于以上类利用接口实现在职研究生类 GradOnWork。

【源代码程序】

class People:
    def __init__(self, name, gender, age):
        self.name = name
        self.gender = gender
        self.age = age

    def display_info(self):
        print(f"姓名: {self.name}, 性别: {self.gender}, 年龄: {self.age}")
class Student(People):
    def __init__(self, name, gender, age, student_id, enrollment_year, admission_score):
        super().__init__(name, gender, age)
        self.student_id = student_id
        self.enrollment_year = enrollment_year
        self.admission_score = admission_score

    def display_student_info(self):
        super().display_info()
        print(f"学号: {self.student_id}, 入学年份: {self.enrollment_year}, 录取分数: {self.admission_score}")
class Teacher(People):
    def __init__(self, name, gender, age, title, department, working_years):
        super().__init__(name, gender, age)
        self.title = title
        self.department = department
        self.working_years = working_years

    def display_teacher_info(self):
        super().display_info()
        print(f"职务: {self.title}, 部门: {self.department}, 工作时间: {self.working_years}")
class Graduate(Student):
    def __init__(self, name, gender, age, student_id, enrollment_year, admission_score, research_direction, advisor):
        super().__init__(name, gender, age, student_id, enrollment_year, admission_score)
        self.research_direction = research_direction
        self.advisor = advisor

    def display_graduate_info(self):
        super().display_student_info()
        print(f"研究方向: {self.research_direction}, 导师: {self.advisor}")
class GradOnWork(Graduate):
    def __init__(self, name, gender, age, student_id, enrollment_year, admission_score, research_direction, advisor, work_status):
        super().__init__(name, gender, age, student_id, enrollment_year, admission_score, research_direction, advisor)
        self.work_status = work_status

    def display_work_status(self):
        print(f"工作状态: {self.work_status}")

    # 重写显示信息方法，包含工作状态
    def display_graduate_info(self):
        super().display_graduate_info()
        self.display_work_status()

if __name__ == "__main__":
    # 创建一个研究生实例
    grad_student = Graduate("索尔古德曼", "男", 24, "S2023001", 2023, 85.0, "文科", "Dr.布吉岛")
    grad_student.display_graduate_info()

    # 创建一个在职研究生实例
    grad_on_work = GradOnWork("沃尔特怀特", "男", 27, "S2021002", 2021, 90.0, "结晶学", "Prof.海森堡", "在职研究生")
    grad_on_work.display_graduate_info()