import unittest
class Student(object):
def __init__(self, name, score):
self.name = name
self.score = score
def get_grade(self):
if self.score<0 or self.score>100:
raise ValueError
elif self.score >= 80:
return 'A'
elif self.score>=60:
return 'B'
else:
return 'C'
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画手
import unittest
class Student(object):
def __init__(self, name, score):
self.name = name
self.score = score
def get_grade(self):
if self.score<0 or self.score>100:
raise ValueError
elif self.score >= 80:
return 'A'
elif self.score>=60:
return 'B'
else:
return 'C'