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>