python 反射 hasattr getattr

class BlackMedium:

    feature='Ugly'

    def __init__(self,name,addr):

        self.name=name

        self.addr=addr

 

    def sell_house(self):

        print('%s 黑中介卖房子啦,傻逼才买呢,但是谁能证明自己不傻逼' %self.name)

    def rent_house(self):

        print('%s 黑中介租房子啦,傻逼才租呢' %self.name)

 

b1=BlackMedium('万成置地','回龙观天露园')

 

#检测是否含有某属性

print(hasattr(b1,'name'))

print(hasattr(b1,'sell_house'))

 

#获取属性

n=getattr(b1,'name')

print(n)

func=getattr(b1,'rent_house')

func()

 

# getattr(b1,'aaaaaaaa') #报错

print(getattr(b1,'aaaaaaaa','不存在啊'))

 

#设置属性

setattr(b1,'sb',True)

setattr(b1,'show_name',lambda self:self.name+'sb')

print(b1.__dict__)

print(b1.show_name(b1))

 

#删除属性

delattr(b1,'addr')

delattr(b1,'show_name')

delattr(b1,'show_name111')#不存在,则报错

 

print(b1.__dict__)