python中的class
- python 2.x(准确的说从2.2开始)
class 有俩种定义方式 分为 新式类 和 经典类
//新式类
class Foo(object):
pass
>>> Foo.__base__
<type 'object'>
>>> Foo.__bases__
(<type 'object'>,)
//经典类
class Foo:
pass
>>> Foo.__bases__
()
>>> Foo.__base__
AttributeError: class Foo has no attribute '__base__'- python 3.x
class 还是有俩种定义方式，不过都是新式类
//新式类
class Foo(object):
pass
>>> Foo.__base__
<type 'object'>
>>> Foo.__bases__
(<type 'object'>,)
//新式类（隐式地继承object class）(Classes without an inheritance list inherit, by default, from the base class object)
class Foo:
pass
>>> Foo.__base__
<type 'object'>
>>> Foo.__bases__
(<type 'object'>,)