Python 当I'；我正试图覆盖uu plus uu函数

我试图学习Python中的OOP，并编写以下代码来覆盖

\uuuu plus\uu

方法

class Fraction(object):
    '''Define a fraction type'''
    def __init__(self, num=0, denom=1):
        '''Create a new Fraction with numerator num and denominator demon'''
        self.numerator = num
        if denom != 0:
            self.denominator = denom
        else:
            raise ZeroDivisionError


    def __plus__(self, f):
        num = self.numerator + f.numerator      
        denom = self.numerator + f.denominator
        return "{0}/{1}".format(num, denom)

f = Fraction(1, 6)

打印f+f#我希望结果为2/12

  File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for +: 'Fraction'

文件“”，第1行，在
TypeError:不支持+：“分数”的操作数类型

---

但是它给了我一个错误，我不知道如何解决这个错误，你知道吗？

你需要重写

\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu添加

方法，而不是

。只需尝试将
\uuuuu plus\uuuuuuu
替换为
\uuuu add\uuuuuuu
工作代码：

class Fraction(object):
    '''Define a fraction type'''
    def __init__(self, num=0, denom=1):
        '''Create a new Fraction with numerator num and denominator demon'''
        self.numerator = num
        if denom != 0:
            self.denominator = denom
        else:
            raise ZeroDivisionError

    def __add__(self, f):
        num = self.numerator + f.numerator      
        denom = self.denominator + f.denominator
        return "{0}/{1}".format(num, denom)

请注意，我还修复了
denom=self.denomator+f.denomator
您可能想要
\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
接口？两点：（1）
\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu。（2） 
a/b+c/d
通常不等于
（a+b）/（c+d）
，因此您的算法不太有效。
从分数导入分数
@DSM您是对的，特别是关于第二点，它返回分数实例对于OOP概念来说更有意义