Actionscript 3 动作脚本3.0。我试过一个程序，可以移动拖拽器和内容movieclip，

在这段代码中，当导入的.swf文件正在播放时，我需要一个进度条来继续播放，同时我应该能够在进度条中拖动拖动器，即拖动器的移动速率应该与.swf文件播放速率同步。我得到参数错误：在场景1中找不到2109帧标签459.99

var loader:Loader = new Loader();
playBtn.visible = true;

pauseBtn.visible = false;
btn_00.addEventListener(MouseEvent.CLICK, fileLoaded);
btn_01.addEventListener(MouseEvent.CLICK, fileLoaded);
btn_02.addEventListener(MouseEvent.CLICK, fileLoaded);
function fileLoaded(evt:MouseEvent):void
{
    var fileName:String = evt.currentTarget.name;
    var fileNumber:String = fileName.split("_")[1];
    var urlPath:String = "assets/file_" + fileNumber + ".swf";
    loader.load(new URLRequest(urlPath));
    addChild(loader);
}
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, swfLoaded);
function swfLoaded(event:Event):void
{
    addEventListener(Event.ENTER_FRAME, trackPlayback);
}
function trackPlayback(event:Event):void
{
    var perPlayed:Number = MovieClip(loader.content).currentFrame / MovieClip(loader.content).totalFrames;
    progressbar.drag.x = (progressbar.bar.width - progressbar.drag.width) * perPlayed;
}
progressbar.drag.buttonMode = true;
var dragClicked:Boolean = false;
var xpos:Number = progressbar.bar.x * progressbar.drag.width;
progressbar.drag.addEventListener(MouseEvent.MOUSE_DOWN,dragMouseDown);
function dragMouseDown(evt:MouseEvent):void
{
    trace(" inside mouse down ");
    dragClicked = true;
    progressbar.drag.startDrag(false,new Rectangle(xpos,0,progressbar.width-progressbar.drag.width,0));
}

progressbar.drag.addEventListener(MouseEvent.MOUSE_UP,dragMouseUp);
function dragMouseUp(evt:MouseEvent):void
{
    dragClicked = false;
    progressbar.drag.stopDrag();
    var cnt:Number = (progressbar.drag.x/(progressbar.width-progressbar.drag.width))*MovieClip(loader.content).totalFrames;
    MovieClip(loader.content).gotoAndPlay(cnt);
  }

请解决我的问题

---

提前感谢。

要访问特定帧，需要提供一个整数值，此时使用的是浮点值

一个简单的修复方法是将数字转换为int：

MovieClip(loader.content).gotoAndPlay(int(cnt));