1 class Foo:
2 def __init__(self,name):
3 self.name=name
4 def __call__(self, *args, **kwargs):
5 print('====>')
6 f=Foo('egon')
7 f()
8
9 class Foo:
10 def __init__(self,name):
11 self.name=name
12 def __getitem__(self,item):
13 print('getitem',self.__dict__)
14 return self.__dict__[item]
15 def __setitem__(self, key, value):
16 print('setimtem')
17 self.__dict__[key]=value
18 def __delitem__(self, key):
19 print('del obj[key]时,我执行')
20 self.__dict__.pop(key)
21 f=Foo('egon')
22 # print(f['name']) #f.name
23 f['x']=1
24 # print(f.__dict__)
25 del f['x']
26 print(f.__dict__)
27
28 f1=Foo('sb')
29 f1['age']=18
30 f1['age1']=19
31 del f1.age1
32 del f1['age']
33 f1['name']='alex'
34 print(f1.__dict__)
