实验五

class StudentDoc:
    def __init__(self,number,name,major,score):
        self.number=number
        self.name=name
        self.major=major
        self.score=score
    def info(self):
        print(f'xuehao:{self.number}')
        print(f'xingming:{self.name}')
        print(f'zhuanye:{self.major}')

    def score(self):
        return self.score
    def change(self,newscore):
        self.score=newscore
        return newscore

def main():
        s1 = StudentDoc(202013420010, 'hui', 'python', 0)
        s1.info()
        s1.score(0)
        s1.info()
        s1.change(100)

if __name__ == '__main__':
        main()