class?Person(object):

????def?__init__(self,?name,?score):

????????self.name?=?name

????????self.score?=?score

????def?get_grade(self):

????????if?self.score?>=?90?:

????????????return?self.name?+?':A-優秀'

????????elif?self.score?>=?60?:

????????????return?self.name?+?':B-及格'

????????else:

????????????return?self.name?+?':B-不及格'

p1?=?Person('Bob',?90)

p2?=?Person('Alice',?65)

p3?=?Person('Tim',?48)

print(p1.get_grade())

print(p2.get_grade())

print(p3.get_grade())