实验五

class StudentDoc:
    def __init__(self, number, name, work, mark):
        self.number=number
        self.name=name
        self.work=work
        self.mark=mark
    def info(self):
        print(f'姓名:{self.name};学号：{self.number};专业:{self.work};分数:{self.mark}')
        return
    def viewmark(self):
        print(self.mark)
        return
    def changemark(self,num):
        ans = int(num)
        self.mark=ans
        return
#测试类

def main():
    a1 = StudentDoc(2020123,"Marry","chr",88)
    a2 = StudentDoc(2020121,"Bob","ahr",98)
    a1.info
    a2.info
    a1.viewmark
    a2.viewmark
    a1.changemark(68)
    a2.changemark(78)
    a1.viewmark
    a2.viewmark
if __name__ == '__main__':
    print('模块信息: ', __doc__)
    print('StudentDoc类信息: ', StudentDoc.__doc__)
    main()

import student
s1 = student.StudentDoc(2020123,"Marry","chr",88)
s1.info()
s1.changemark(98)
s1.viewmark()