如何调用超级构造函数？ [英] How to invoke the super constructor?

问题描述

class A:
 def __init__(self):
   print "world"

class B(A):
 def __init__(self):
   print "hello"

B()
hello

在我使用超级构造函数的所有其他语言中隐式调用。如何在Python中调用它？我希望超级（自我）但这不起作用。

In all other languages I've worked with the super constructor is invoked implicitly. How does one invoke it in Python? I would expect super(self) but this doesn't work.

推荐答案

super（）在新式类中返回类似父类的对象：

super() returns a parent-like object in new-style classes:

class A(object):
    def __init__(self):
        print "world"

class B(A):
    def __init__(self):
        print "hello"
        super(B, self).__init__()

B()

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