Created
May 28, 2016 08:27
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| def __truedive__(self,fraction): | |
| if fraction.numerator == 0: | |
| print('Cannot divide by 0') | |
| exit() | |
| else: | |
| return(Fraction(self.numerator*fraction.denominator,self.denominator*fraction.numerator)) |
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给学生的回答
你的"魔法方法名错了", 应该用
__truediv__.魔法方法名错误的结果就是, python解释器在运行
a/b的时候, 操作符/会找不到对应的魔法方法.