Question

我正在尝试运行此代码并出现错误

这是代码：

# File oop.py
class Person():

  def __init__(self, name, job=None, pay=0):
    self.name = name
    self.job = job
    self.pay = pay

    def firstname(self):
      return self.name.split()[0]

    def lastname(self):
      return self.name.split()[-1]

    def giveRaise(self,percent):
      self.pay = int(self.pay * (1 + percent))

class Manager(Person):

  def __init__(self, name, pay):
    Person.__init__(self, name, 'mgr', pay)

  def giveRaise(self, percent, bonus = .10):
    Person.giveRaise(self, percent + bonus)

if __name__ == '__main__':
  #self-test code
  chris = Manager('Chris Jones', 50000)
  chris.giveRaise(.20)
  print(chris)

这是我得到的确切错误。我不知道我的代码有什么问题。请帮我解决。

Traceback (most recent call last):
  File "main.py", line 29, in <module>
    chris.giveRaise(.20)
  File "main.py", line 24, in giveRaise
    Person.giveRaise(self, percent + bonus)
AttributeError: class Person has no attribute 'giveRaise'

Answer 1

发生这种情况是由于Person.__init__缩进。 python假定firstname，lastname和giveRaise的全部都是__init__函数的局部函数。（您可以在该函数中定义它们）。因此，请按以下步骤修复缩进：

class Person:

    def __init__(self, name, job=None, pay=0):
        self.name = name
        self.job = job
        self.pay = pay

    def firstname(self):
        return self.name.split()[0]

    def lastname(self):
        return self.name.split()[-1]

    def giveRaise(self,percent):
        self.pay = int(self.pay * (1 + percent))


class Manager(Person):

    def __init__(self, name, pay):
        Person.__init__(self, name, 'mgr', pay)

    def giveRaise(self, percent, bonus = .10):
        Person.giveRaise(self, percent + bonus)


if __name__ == '__main__':
    chris = Manager('Chris Jones', 50000)
    chris.giveRaise(.20)
    print(chris.pay)

您的代码将起作用。请注意，最好使用super代替Person，如下所示：

class Manager(Person):

    def __init__(self, name, pay):
        super(Manager, self).__init__(name, 'mgr', pay)

    def giveRaise(self, percent, bonus = .10):
        super(Manager, self).giveRaise(percent + bonus)

类在Python代码中没有属性错误

1 个答案: