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    flash.util.TimerÀàÔÊÐíͨ¹ýÌí¼Óʱ¼äʼþ»òÑÓʱÀ´µ÷Ó÷½·¨¡£Í¨¹ýTimer¹¹ÔìÆ÷´´½¨ÊµÀý¶ÔÏ󣬴«µÝÒ»¸öºÁÃëÊý×Ö×÷Ϊ¹¹Ôì²ÎÊý×÷Ϊ¼ä¸ôʱ¼ä£¬ÏÂÃæµÄÀý×ÓʵÀý»¯Ò»¸öTimer¶ÔÏóÿ¸ö1ÃëÖÓ·¢³öʼþÐźţº
    var timer:Timer = new Timer(1000);
   
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    timer.addEventListener(TimerEvent.TIMER, onTimer);
    function onTimer(event:TimerEvent):void{
         trace("on timer");
    }
    Timer¶ÔÏó²»»á×Ô¶¯¿ªÊ¼£¬±ØÐëµ÷ÓÃstart()·½·¨Æô¶¯£º
    timer.start();
    ĬÈÏÇé¿öÏÂÖ»Óе÷ÓÃstop()·½·¨²Å»áÍ£ÏÂÀ´£¬²»¹ýÁíÒ»ÖÖ·½·¨ÊÇ´«µÝ¸ø¹¹ÔìÆ÷µÚ¶þ¸ö²ÎÊý×÷ΪÔËÐдÎÊý£¬Ä¬ÈÏֵΪ0¼´ÎÞÏ޴Σ¬ÏÂÃæµÄÀý×ÓÉ趨¶¨Ê±Æ÷ÔËÐÐ5´Î£º
    var timer:Timer = new Timer(1000, 5);
    ÏÂÃæµÄ´úÂëÉ趨¶¨Ê±Æ÷ÑÓʱ5ÃëÖ´ÐÐdeferredMethod()·½·¨£º
    var timer:Timer = new Timer(5000, 1);
    timer.addEventListener(TimerEvent.TIMER, deferredMethod);
    timer.start();


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