用twisted为未来安排任务(Scheduling tasks for the future

我们想再x秒后执行一个任务,可以使用twisted.internet.interfaces.IReactorTime: from twisted.internet import reactor def f(s): print "this will run 3.5 seconds after it was scheduled: %s" % s reactor.callLater(3.5, f, "hello, world") 如果想每x秒就重复执行一个任务,可以使用twisted.internet.task.LoopingCall: from twisted.internet import task def runEverySecond(): print "a second has passed" l = task.LoopingCall(runEverySecond) l.start(1.0) # call every second # l.stop() will stop the looping calls 如果想要取消一个已经安排的任务: from twisted.internet import reactor def f(): print "I'll never run." callID = reactor.callLater(5, f) callID.cancel()   翻译 -- Jerry Marx.