py:类的列表成员类型

File : class_member.py
Type : python
Brief : python列表成员引用指向说明


一般而言:

  • __init__外的为类的静态成员
  • __init__内的为类的实例对象的成员
class MyClass:
    static_elem = 123

    def __init__(self):
        self.object_elem = 456

c1 = MyClass()
c2 = MyClass()

# Initial values of both elements
>>> print c1.static_elem, c1.object_elem 
123 456
>>> print c2.static_elem, c2.object_elem
123 456

# Nothing new so far ...

# Let's try changing the static element
MyClass.static_elem = 999

>>> print c1.static_elem, c1.object_elem
999 456
>>> print c2.static_elem, c2.object_elem
999 456

# Now, let's try changing the object element
c1.object_elem = 888

>>> print c1.static_elem, c1.object_elem
999 888
>>> print c2.static_elem, c2.object_elem
999 456

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文章标题:py:类的列表成员类型

本文作者:Yehuohanxing

发布时间:2018-01-24, 15:24:53

最后更新:2018-04-13, 00:25:26

原始链接:http://yehuohan.github.io/2018/01/24/Gist/python/py-类的列表成员类型/

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