Flash 访问未定义的属性URLRequestMethod.POST

伙计们，我做错什么了？请帮助它不断抛出错误。这是我的剧本：

package{
import flash.display.MovieClip;
import flash.net.FileFilter;
import flash.events.MouseEvent;
import flash.net.FileReference;
import flash.events.MouseEvent;
import flash.events.Event;
import flash.net.URLRequest;
import flash.net.URLVariables;


public class Main extends MovieClip{

    private  var filefilter:FileFilter= new FileFilter("Images (*.jpg, *.jpeg, *.gif, *.png)", "*.jpg; *.jpeg; *.gif; *.png");
    private var filename:String="";
    private var randomname:String;
    private var fileType:Array=new Array(filefilter);
    private var fileref:FileReference;

    public function Main(){


        uploadbtn.addEventListener(MouseEvent.MOUSE_UP, upload)




    }//public  function


private function upload(e:MouseEvent){
    randomname=String(Math.ceil(Math.random()*10000))
    trace(randomname)
    fileref=new FileReference()
    fileref.addEventListener(Event.SELECT,selectHandler);
    fileref.addEventListener(Event.CANCEL,cancelHandler);
    fileref.addEventListener(Event.COMPLETE,completeHandler);
    fileref.browse(fileType);

}//upload

private function selectHandler(e:Event){
    var urlrequest:URLRequest = new URLRequest("http://localhost/upload.php")
    var urlvariable:URLVariables=new URLVariables()

    urlvariable.randomname = randomname;
    urlrequest.data = urlvariable;
    urlrequest.method= URLRequestMethod.POST;


}

private function cancelHandler(e:Event){

}


private function completeHandler(e:Event){

}


}// public class

---

}//包

是否也尝试导入URLRequestMethod

import flash.net.URLRequestMethod;

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这个东西对我有用（我只是复制了你的源代码并构建了），让我知道它是否也对你有用。嗨，海莉希！我以为你的要求就足够了，但我正在考虑进口一些东西。这就是我错过的！谢谢。我很感激！