# -*- coding: UTF-8 -*-
dic = {'k':'v'}
dic['k'] = 'v'
#对象：存储属性，调用方法
#字典就是通过如下三个方法实现的
# __getitem__  __setitem__  __delitem__
class Foo:
    def __init__(self,name,age,sex):
        self.name = name
        self.age = age
        self.sex = sex
    def __getitem__(self, item):
        if hasattr(self,item):
            return self.__dict__[item]
    def __setitem__(self,key,value):
        self.__dict__[key] = value
    def __delitem__(self,key):
        #del self.__dict__[key]
        print("执行了delitem")
        self.__dict__.pop(key)
    def __delattr__(self, item):
        self.__dict__.pop(item)
        print("执行了delattr")
f = Foo('nezhan',36,'男')
print(f['name'])
f['hobby'] = '女'
print(f['hobby'])
print(f.hobby)
print(f.__dict__)
#del f.hobby #正常删除  object类原生支持
del f['hobby'] #item方法删除 自己实现的方法
print(f.__dict__)