Question

我刚刚开始学习Python，我不太明白这段代码中的问题在哪里。我有一个基类Proband有两个方法，我想创建一个子类Gesunder，我想覆盖属性idn，artefakte。

import scipy.io
class Proband:
  def __init__(self,idn,artefakte):
    self.__idn = idn
    self.artefakte = artefakte
  def getData(self):
    path = 'C:\matlab\EKGnurbild_von Proband'+ str(self.idn)
    return scipy.io.loadmat(path)
  def __eq__(self,neueProband):
    return self.idn == neueProband.idn and self.artefakte == neueProband.artefakte



class Gesunder(Proband):
  def __init__(self,idn,artefakte,sportler):
    super().__init__(self,idn,artefakte)
    self.__sportler = sportler

hans = Gesunder(2,3,3)

Answer 1

您的代码中有2个问题。在python 2中：

super()有两个参数：类名和实例
为了使用super()，基类必须继承自object

所以你的代码变成了：

import scipy.io

class Proband(object):
    def __init__(self,idn,artefakte):
        self.__idn = idn
        self.artefakte = artefakte
    def getData(self):
        path = 'C:\matlab\EKGnurbild_von Proband'+ str(self.idn)
        return scipy.io.loadmat(path)
    def __eq__(self,neueProband):
        return self.idn == neueProband.idn and self.artefakte == neueProband.artefakte

class Gesunder(Proband):
    def __init__(self,idn,artefakte,sportler):
        super(Gesunder, self).__init__(idn,artefakte)
        self.__sportler = sportler

hans = Gesunder(2,3,3)

请注意，对super(Gesunder, self).__init__的调用没有self作为第一个参数。

Answer 2

在Python 2中，super()本身无效。相反，您必须使用super(ClassName, self)。

super(Gesunder, self).__init__(self, idn, artefakte)

Answer 3

super()来电应修改为：

super(Gesunder, self).__init__(self, idn, artefakte)

super（）在Python 2中给出了错误

3 个答案: