8.python Face Object part.7 (__setitem__,__getitem,__delitem__)

OBJ[XXX] = "XX" This action triggers the __setitem__ method of the object.

del obj["xxx"] This action triggers the __delitem__ method of the object.

obj["XXX"] triggers the __getitem__ method of the object.

Class Foo:

def __init__ (self,name):

Self.name=name

def __getitem__ (self, item):

Print (Self.__dict__[item])

def __setitem__ (self, Key, value):

Self.__dict__[key]=value

def __delitem__ (self, key):

Print (' del Obj[key], I execute ')

Self.__dict__.pop (Key)

def __delattr__ (self, item):

Print (' del obj.key, I execute ')

Self.__dict__.pop (item)

F1=foo (' SB ')

f1[' age ']=18

f1[' Age1 ']=19

Del F1.age1

Del f1[' age ']

f1[' name ']= ' AAA '

Print (f1.__dict__)

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8.python Face Object part.7 (__setitem__,__getitem,__delitem__)