可调用对象

 

def vix():
    print(vix.__module__,vix.__name__)

vix() == vix.__call__()

对象vix加上(),就是调用对象的__call__()方法

 

定义一个类,实例化得到实例,将实例像函数一样调用

def viz(*args):
    print(args)

# print(viz.__dict__)
# print(dir(viz))
print(viz.__call__)
viz.__call__(88)

class B:
    def __call__(self,*args,**kwargs):
        print(args)
B()(99)

class Biz:
    def __init__(self,x,y):
        self.x=x
        self.y=y
    def __call__(self,*args,**kwargs):
        return 'Biz({},{})'.format(self.x,self.y)

b=Biz(5,7)
print(b)
print(b())

class Vix:
    def __call__(self,*args,**kwargs):
        b=0
        for x in args:
            b+=x
        self.b=b
        return b
v=Vix()
print(v(4,4,7))
print(v.b)