class DetailedScore(Score):
'''A subclass of Score adding level'''
def __init__(self, points, initials, level):
'''
(Score, int, str, int) -> NoneType
Create a score including number of points, initials, and level.
'''
super().__init__(points, initials)
self.level = level
def __str__(self):
'''
Return a string representation of DetailedScore formated:
'The student with initials 'KTH' scored 100 points, the student is in level 10'
'''
score_str = super().__str__()
return '{}, the student is in level {}'.format(score_str, self.level)
def __repr__(self):
'''
Return a string representation of DetailedScore formated:
'DetailedScore(100, 'KTH', 10)'
'''
return 'DetailedScore({}, {}, {})'.format(self.points, self.initials, self.level)
score5 = DetailedScore(1000, 'JQP', 100)
score6 = DetailedScore(999, 'ABC', 99)
score7 = DetailedScore(999, 'BBB', 15)
score8 = DetailedScore(1, 'KTH', 12)
我正在努力完成这门课,不知道为什么我总是得到一个错误时,试图建立
这是错误:
Traceback (most recent call last):
File "/Users/KoryHershock/Documents/Python/[Kory_Hershock]_final.py", line 187, in <module>
score5 = DetailedScore(1000, 'JQP', 100)
File "/Users/KoryHershock/Documents/Python/[Kory_Hershock]_final.py", line 162, in __init__
super().__init__(points, initials)
TypeError: super() takes at least 1 argument (0 given)
[Finished in 0.1s with exit code 1]
将
super().__whatever__()
更改为super(Score, self).__whatever__()
如果您使用的是python2,那么必须编写
super(DetailedScore, self)
,而不是super()
python3也允许无参数形式,编译器插入从词法上下文获取的适当类对象
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