转入外部swf并拖动

var ab:Loader=new Loader();
ab.load(new URLRequest("test1.swf"));
box.addChild(ab);
ab.contentLoaderInfo.addEventListener(Event.COMPLETE,wc);

function wc(e:Event) { ?trace("okokokl"); ?box.addEventListener(MouseEvent.MOUSE_DOWN,down); ?box.addEventListener(MouseEvent.MOUSE_UP,up); ?//top.addEventListener(MouseEvent.MOUSE_MOVE,move); } function up(e:MouseEvent) {?box.stopDrag(); } function down(e:MouseEvent) {?box.startDrag();}