我有这个:ScheduledExecutorServicescheduledThreadPool=Executors.newScheduledThreadPool(5);然后我开始这样的任务:scheduledThreadPool.scheduleAtFixedRate(runnable,0,seconds,TimeUnit.SECONDS);我以这种方式保留对Future的引用:ScheduledFuturescheduledFuture=scheduledThreadPool.scheduleAtFixedRate(runnable,0,seconds,TimeUnit.SECON