def deco(func):    def _func(*arg, **kwargs):        ret = func(*arg, **kwargs)        return ret    return _func@decodef myfunc1(a, b):    PRint a + b     return a + b@decodef myfunc2(a, b, c):    print a + b + c    return a + b + cprint myfunc1(1, 2)print myfunc2(1, 2, 3)(一裝飾器多個函數可用)(2)有參
def deco(arg):    def _deco(func):        def _func(*arg, **kwargs):            print arg            ret = func(*arg, **kwargs)            return ret        return _func    return _deco@deco("hi")def myfunc():    print 'hello'    return 'hello world'print myfunc()