class Student(object):
def __init__(self, name, score):
self.name = name
self.score = score
def get_grade(self):
if 100 >= self.score >= 80:
return 'A'
if 79 >= self.score >= 60:
return 'B'
if 0 <= self.score <=59:
return 'C'
else:
raise ValueError('成绩无效')
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class Student(object):
def __init__(self, name, score):
self.name = name
self.score = score
def get_grade(self):
if 100 >= self.score >= 80:
return 'A'
if 79 >= self.score >= 60:
return 'B'
if 0 <= self.score <=59:
return 'C'
else:
raise ValueError('成绩无效')