Flex中Array的IndexOf 的作用示例介绍

<?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"
width="100%" height="100%" creationComplete="creationHandler(event)">
<s:layout>
<s:BasicLayout/>
</s:layout>
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;

/**
* 初始化函数
* indexOf用于在索引中从小到大查找
* 如果查得到就返回索引值，查不到就返回-1
*/
protected function creationHandler(event:FlexEvent):void
{
var array:Array = ["桃树","梨树","松树","樟树"];
if(array.indexOf("梨树") != -1)
{
trace("按索引从小到大查:"+array.indexOf("梨树"));
}
if(array.indexOf("樟树",3) != -1)
{
trace("从第三个元素开始，按索引从小到大查:"+array.indexOf("樟树",3));
}
}

]]>
</fx:Script>
<fx:Declarations>
<!-- 将非可视元素（例如服务、值对象）放在此处 -->
</fx:Declarations>
</s:Application>