flex menubar popUpMenuButton重要示例
取得选自菜单的文本（label），序号(index),自定义值（@value）value为自定义
可以根据@value的值来为每个菜单写上方法，呵呵;
参考：http://livedocs.adobe.com/flex/3_cn/ http://www.iteye.com/topic/210348
代码给出：
<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"><mx:Script> <![CDATA[ import mx.controls.Alert; import mx.controls.Menu import mx.events.MenuEvent; private function initMenu():void{ Menu(myPum.popUp).selectedIndex=2; } private function menuClick(evt:MenuEvent):void{ Alert.show( "你选择了:" + evt.label + ' 选择序号:' + evt.index + ' 自定义值：' + evt.item.@value, "结果"); } ]]></mx:Script><mx:Style> Alert{ fontSize:"14"; fontFamily:"宋体"; }</mx:Style><mx:XML id="myDP"> <root> <submenuitem label="sjekfjakjahgk1" value="1" /> <submenuitem label="sjekfjakjahgk2" value="2" /> <submenuitem label="sjekfjakjahgk3" value="3" /> <submenuitem label="sjekfjakjahgk4" value="4" /> <submenuitem type="separator"/> <submenuitem label="sjekfjakjahgk5" value="5" /> <submenuitem label="sjekfjakjahgk6" value="6" /> <submenuitem label="sjekfjakjahgk7" value="7" /> <submenuitem label="sjekfjakjahgk8" value="8" /> <submenuitem label="sjekfjakjahgk9" value="9" /> </root></mx:XML><mx:PopUpMenuButton x="116" y="72" id="myPum" dataProvider="{myDP}" showRoot="false" labelField="@label" itemClick="menuClick(event);" creationComplete="initMenu()"> </mx:PopUpMenuButton></mx:Application><?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"backgroundColor="0xCCCCCC" fontSize="12"paddingLeft="0" paddingRight="0" paddingTop="10"><mx:Script> <![CDATA[ import mx.controls.* import mx.events.* private function menuClick(evt:MenuEvent):void{ Alert.show( "你选择了:" + evt.label + ' 选择序号:' + evt.index + ' 自定义值：' + evt.item.@data, "结果"); } ]]></mx:Script> <mx:MenuBar id="myMenuBar" labelField="@label" showRoot="false" itemClick="menuClick(event)"> <mx:XML> <root> <menuitem label="展示层实现" > <submenuitem label="HTML开发王" type="check" data="b1"/> <submenuitem label="CSS开发王" type="check" data="b2"/> <submenuitem label="JavaScript开发王" type="radio" groupname="js" data="b3"/> <submenuitem label="Flash ActionScript 3.0开发王" type="radio" groupname="js" data="b4"/> <submenuitem label="Flex开发王" type="check" toggled="true" data="b5"/> </menuitem> <menuitem label="业务逻辑层实现" > <submenuitem label="ASP开发王" data="a1"/> <submenuitem label="JSP开发王" data="a2"/> <submenuitem label="ASP.NET开发王（C#）" data="a3"/> <submenuitem label="ASP.NET开发王（VB）" data="a4"/> <submenuitem label="PHP开发王" data="a5"/> </menuitem> <menuitem label="www.baidu.com"/> </root> </mx:XML> </mx:MenuBar></mx:Application>