class StudentDoc:
    def __init__(self,studentnumber,name,major,point):
        self._studentnumber = studentnumber
        self._name = name
        self._major = major
        self._point = point
    def info(self):
        print(f'学生学号：{self._studentnumber}')
        print(f'学生姓名：{self._name}')
        print(f'学生专业：{self._major}')
        print(f'Python课程分数：{self._point}')
        def change_point(self,newpoint):
        self._point = newpoint
        return newpoint
a1 = StudentDoc('123','Bob','python','90')
a1.change_point(99)
a1.info()

 

 

class StudentDoc:
    def __init__(self,studentnumber,name,major,point):
        self._studentnumber = studentnumber
        self._name = name
        self._major = major
        self._point = point
    def info(self):
        print(f'学生学号：{self._studentnumber}')
        print(f'学生姓名：{self._name}')
        print(f'学生专业：{self._major}')
        print(f'Python课程分数：{self._point}')
    def change_point(self,newpoint):
        self._point = newpoint
        return newpoint
def main():
    a1 = StudentDoc('123', 'Bob', 'python', '90')
    a1.change_point(99)
    a1.info()
if __name__ == '__main__':
    main()