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var obj:Object=new Object(); Key.addListener(obj); preTime=getTimer(); preKeyCode=-1; curKeyCode=-1; obj.onKeyDown=function():Void { curKeyCode=Key.getCode(); thisTime=getTimer(); if(thisTime-preTime<200) { if(preKeyCode==39&&curKeyCode==39) { trace("run"); } } preKeyCode=curKeyCode; preTime=thisTime; }