<?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:Declarations>        <!-- 将非可视元素（例如服务、值对象）放在此处 -->    </fx:Declarations>    <fx:Script>        <![CDATA[            import mx.collections.ArrayCollection;            import mx.collections.Sort;            import mx.collections.SortField;            import mx.controls.Alert;                        [Bindable]            public var coll:ArrayCollection = new ArrayCollection([                {getInfoTime:‘2013-04-23 10:00‘,waterHeight:6},                {getInfoTime:‘2013-04-23 10:02‘,waterHeight:2},                {getInfoTime:‘2013-04-23 10:04‘,waterHeight:3},                {getInfoTime:‘2013-04-23 10:06‘,waterHeight:1000},                {getInfoTime:‘2013-04-23 10:08‘,waterHeight:5.0},                {getInfoTime:‘2013-04-23 10:10‘,waterHeight:2000}            ]);            // Get a function of the maximum            public function btn_getMaxValue_clickHandler():void{                var sort:Sort = new Sort();                //按照waterHeight升序排序                sort.fields=[new SortField("waterHeight")];                  coll.sort = sort;                coll.refresh();                Alert.show(coll[coll.length-1].waterHeight);            }                        //Get a function of the minimum            public function btn_getMinValue_clickHandler():void{                var sort:Sort = new Sort();                //按照waterHeight升序排序                sort.fields=[new SortField("waterHeight")];                  coll.sort = sort;                coll.refresh();                Alert.show(coll[0].waterHeight);                            }        ]]>    </fx:Script>    <s:Button x="171" y="156" width="83" height="31" label="获取最大值" click="btn_getMaxValue_clickHandler();"/>    <s:Button x="321" y="157" width="83" height="31" label="获取最小值" click="btn_getMinValue_clickHandler();"/>    </s:Application>