python 属性，,#! /usr/bi

python 属性，,#! /usr/bi

#! /usr/bin/env python#! -*- cording:utf-8 -*-## class C:#     def __getattribute__(self, name):#         print("getattribute")#         return super().__getattribute__(name)#super默认找父类#     def __getattr__(self, name):#         print("getattr")#     def __setattr__(self, name, value):#         print("setatter")#         super().__setattr__(name,value)#     def __delattr__(self, name):#         print("delattr")#         super().__delattr__(name)# c=C()# c.x## c.x=1class rectangle:    def __init__(self,width=0,height=0):#构造函数        self.width=width        self.height=height    def __setattr__(self, name, value):        if name=="square":            self.width=value            self.height=value        else:            super().__setattr__(name,value)    def getArea(self):        return  self.width*self.heightr1=rectangle(4,5)#实例化类print(r1.getArea())r1.square=10#说明赋予了一个square属性，被设置了，则直接把square赋值给value，执行操作，就是正方形print(r1.getArea())print(r1.__dict__)#直接打印出了字典属性

python 属性