python中super在ipython中的解释。

In [6]: super?                                                                                                                                         
Init signature: super(self, /, *args, **kwargs)
Docstring:     
super() -> same as super(__class__, <first argument>)
super(type) -> unbound super object
super(type, obj) -> bound super object; requires isinstance(obj, type)
super(type, type2) -> bound super object; requires issubclass(type2, type)
Typical use to call a cooperative superclass method:
class C(B):
    def meth(self, arg):
        super().meth(arg)
This works for class methods too:
class C(B):
    @classmethod
    def cmeth(cls, arg):
        super().cmeth(arg)
Type:           type
Subclasses:     

 第一个参数指定起点，

第二个参数是需要绑定的对象，如果是类的话，必须是第一个参数的子类。

如果是对象的话，必须是第一个参数的实例。