python hasattr/getattr/setattr/instancemethod/classmethod/staticmethod
描述:含hasattr/getattr/setattr/instancemethod/classmethod/staticmethod
instancemethod: 普通方法,供实例调用
classmethod: 类方法,不需实例化对象,供实例和类调用
staticmethod: 与类中其他方法、属性无关的方法,供类、实例调用
# -*- coding: utf8 -*-
class First(object):
name = 'first class name'
def instance_func(self):
print("class first instance func")
@classmethod
def class_func(cls):
print('class first class func')
print('class first attr name: ', cls.name)
@staticmethod
def statuc_func():
print('class first static func')
if __name__ == '__main__':
a = First()
print("* * " * 30)
print(hasattr(a, 'name'))
print(getattr(a, 'name'))
print(setattr(a, 'name', '123'))
print(getattr(a, 'name'))
print("* * " * 30)
a.instance_func()
a.class_func()
a.statuc_func()
First.class_func()
First.statuc_func()
print("* * "*30)
输出:
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
True
first class name
None
123
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
class first instance func
class first class func
class first attr name: first class name
class first static func
class first class func
class first attr name: first class name
class first static func
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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