propety属性是吧方法当作属性来用，简化代码
proprty分为类方式和装饰器方式
类方式：
class Acount(object):
def __init__(self,name,blane):
self.__name = name
self.__blane = blane
self.__age = age
def get_name(self):
return self.__name
def get_blane(self):
return self.__blane
def set_blane(self,money):
if isinstance(money,int):
self.__blane += moey
username = propety(get_name)
blane = propety(get_blane,set_blane)
jack =Acount('jack',999)
print(jack.username)
print(jack.blane)
jack.set_blane(1)
print(jack.blane)
属性方式
class Aocunt(object):
def __init__(self,blane,age):
self.__blane = blane
self.__age = age
@propety
def get_blane(self):
return self.__blane
@blane.setter
def set_blane(self,money):
self.__blane += money
@propety
def get_age(self):
return self.__age
@age.setter
def set_age(self,a):
self.__age += a
jack = Aocunt(999,18)
print(jack.blane)
print(jack.age)
jack.age=2
jack.blane=1
print(jack.blane)
print(jack.age)
注意装饰器方式中@propety只能代替get方法，set方法需要用方法名.setter代替
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