class?QueueObject():
????def?__init__(self,?queue,?auto_get=False):
????????self._queue?=?queue
????????self.object?=?self._queue.get()?if?auto_get?else?None
????def?__enter__(self):
????????if?self.object?is?None:
????????????self.object?=?self._queue.get()
????????return?self.object
????def?__exit__(self,?Type,?value,?traceback):
????????if?self.object?is?not?None:
????????????self._queue.put(self.object)
????????????self.object?=?None
????def?__del__(self):
????????if?self.object?is?not?None:
????????????self._queue.put(self.object)
????????????self.object?=?None
def?main():
????try:
????????import?queue
????except?ImportError:??#?python?2.x的兼容性
????????import?Queue?as?queue
????def?test_object(queue):
????????queue_object?=?QueueObject(queue,?True)
????????print('內(nèi)部?func:?{}'.format(queue_object.object))
????sample_queue?=?queue.Queue()
????sample_queue.put('yam')
????with?QueueObject(sample_queue)?as?obj:
????????print('Inside?with:?{}'.format(obj))
????print('Outside?with:?{}'.format(sample_queue.get()))
????sample_queue.put('sam')
????test_object(sample_queue)
????print('外部?func:?{}'.format(sample_queue.get()))
????if?not?sample_queue.empty():
????????print(sample_queue.get())
if?__name__?==?'__main__':
????main()
