flex PopMenu(demo)

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">
     <mx:Script>
        <![CDATA[
       //导入需要的包
            import mx.controls.Menu;
            import mx.events.MenuEvent;
            import mx.controls.Alert;          
            import flash.geom.Point;
            import flash.events.MouseEvent;
            //声明一个标明鼠标位置的类
            private var point1:Point = new Point();
            //声明菜单
            private var myMenu:Menu;
            //定义弹出菜单函数
             private function showMenu(event:MouseEvent):void {
             //创建弹出菜单，指明弹出菜单得内容
                myMenu= Menu.createMenu(panel, myMenuData, false);
                //指明弹出菜单，显示的字段
                myMenu.labelField="@label"
            &nbs