对类使用dir()-白红宇

对类使用dir()

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发布时间：2019-06-09

本文共 1439 字，大约阅读时间需要 4 分钟。

class A:    clavariable = 1    __privilage_variable = 2        def __init__(self):        instance_variable = 3    __privilage_instance_variable = 4        def __privilage_instance_method(self):    passprint(dir())#对模块print(dir(A))#对类a = A()print(dir(a))#对实例

输出结果

['A', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__']['_A__privilage_instance_method', '_A__privilage_variable', '__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'clavariable']['_A__privilage_instance_method', '_A__privilage_variable', '__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', 'clavariable']

dir(实例)

打印_A__privilage_instance_method#私有实例方法_A__privilage_variable#私有类属性clavariable#类变量不打印instance_variable = 3 #实例属性__privilage_instance_variable = 4 #私有实例属性