On Apr 11, 5:19 am, "7stud" <[EMAIL PROTECTED]> wrote:
> On Apr 10, 9:08 pm, "人言落日是天涯，望极天涯不见家" <[EMAIL PROTECTED]> wrote:
>
> > I define the class like this:
> > class AAA:
> > counter = 0
> > def __init__(self):
> > pass
> > def counter_increase():
> > AAA.counter += 1
> > print "couter now :", AAA.counter
>
> > But how could I call the function "counter_incrrease" ?
>
> > Thanks !
>
> 1)
> class AAA:
> counter = 0
> def __init__(self):
> pass
> @staticmethod
> def counter_increase():
> AAA.counter += 1
> print "couter now :", AAA.counter
>
> AAA.counter_increase()
>
> 2)
> class AAA:
> counter = 0
> def __init__(self):
> pass
> def counter_increase():
> AAA.counter += 1
> print "couter now :", AAA.counter
> counter_increase = staticmethod(counter_increase)
>
> AAA.counter_increase()
>
> 3)
> class AAA:
> counter = 0
> def __init__(self):
> pass
> def counter_increase(self):
> AAA.counter += 1
> print "couter now :", AAA.counter
> aaa = AAA()
> AAA.counter_increase(aaa)
1. In this case you will prefer a classmethod instead a staticmethod.
2. If counter is the number of instances of class AAA then you will
incrase counter inside __init__ method.
class AAA (object):
counter = 0
def __init__(self):
type(self).counter_increase()
@classmethod
def counter_increase(cls):
cls.counter += 1
or
class AAA (object):
counter = 0
def __init__(self):
type(self).counter += 1
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