掌握蟒蛇接力誤差超

Question

我想這

In [1]: class Parent: 
    ...:  def __init__(self): 
    ...:   self.a =10 
    ...:   self.b =20 
    ...: 


In [3]: class NewParent(Parent): 
    def __init__self(): 
     super(NewParent,self).__init__() 
     self.c =30 
    ...: 

當我這樣做

In [4]: c = NewParent() 

In [5]: c 
Out[5]: <__main__.NewParent instance at 0x2c98878> 

In [6]: c.a 
Out[6]: 10 

In [7]: c.b 
Out[7]: 20 

In [8]: c.c 

---

AttributeError的回溯（最近最後一次通話）在 （） - - > 1 cc

AttributeError：NewParent實例沒有屬性'c'

Answer 1

您僞造了NewParent上的方法聲明。

def __init__(self): 

Answer 2

class NewParent(Parent): 
    def __init__self(): 
     super(NewParent,self).__init__() 
     self.c =30 

應該

class NewParent(Parent): 
    def __init__(self): 
     #Your code here