Python Primer python 4 types: function decoration function, function decoration class, class decoration function, class decoration class

One: function decoration function

def Wrapfun (func):     def Inner (A, b):         Print ('function name:', func. __name__ )        = func (A, b)        return  R    return  Inner@wrapfundef  Myadd (A, B):    return A + bprint( Myadd (2, 3))

Second: Function Decoration class

defWrapclass (CLS):defInner (a):Print('class Name:'Cls.__name__)        returnCLS (a)returnInner@wrapclassclassFoo ():def __init__(Self, a): SELF.A=adefFun (self):Print('SELF.A =', SELF.A) m= Foo ('Xiemanr') M.fun ()

Three: Class decoration function

classshowfunname ():def __init__(Self, func): Self._func=funcdef __call__(Self, a):Print('function Name:', Self._func.__name__)        returnSelf._func (a) @ShowFunNamedefBar (a):returnaPrint(Bar ('Xiemanr'))

Four: Class decoration class

classShowclassname (object):def __init__(self, CLS): Self._cls=CLSdef __call__(Self, a):Print('class Name:', Self._cls.__name__)        returnSelf._cls (a) @ShowClassNameclassFoobar (object):def __init__(Self, a): Self.value=adefFun (self):Print(Self.value) a= Foobar ('Xiemanr') A.fun ()

Reference

Python Primer python 4 types: function decoration function, function decoration class, class decoration function, class decoration class