<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

               xmlns:s="library://ns.adobe.com/flex/spark"

               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

    <fx:Script>

        <![CDATA[

            import mx.collections.ArrayCollection;

        ]]>

    </fx:Script>

    <fx:Declarations>

        <!-- 将非可视元素（例如服务、值对象）放在此处 -->

    </fx:Declarations>

    <fx:Style>

        @namespace s "library://ns.adobe.com/flex/spark";

        @namespace mx "library://ns.adobe.com/flex/mx";

        .lastButton{

            color:blue;

            cornerRadius:20;

            fontWeight:normal;

            chromeColor:haloGreen;

        }

    </fx:Style>

    <mx:ButtonBar id="buttonBar" dataProvider="[red,orange,yellow,green,blue]" lastButtonStyleName="lastButton"  />

    <!--<s:ButtonBar dataProvider="{new ArrayCollection(['red','orange','yellow','green','blue'])}"/>-->

</s:Application>