<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" verticalAlign="middle" backgroundColor="white" creationComplete="initApp()">

<mx:Style>
 .errorTip
 {
 fontSize: 12;
 }
</mx:Style>
 <mx:Script>
 <![CDATA[
 import mx.events.ValidationResultEvent;
 import mx.controls.Alert;
 import mx.validators.Validator;

 private var myValidators:Array;
 

 private function initApp():void {
 myValidators = [valid1, valid2];
 }

 private function clickHandler():void {
 var errors:Array = Validator.validateAll(myValidators);
 if (errors.length == 0) {
 Alert.show("Looks valid to me.", "SUCCESS");
 }
 }
 ]]>
 </mx:Script>

 <mx:StringValidator id="valid1" source="{ti1}" property="text" minLength="4" maxLength="6" tooShortError="太少了吧" tooLongError="太多了吧" />
 <mx:StringValidator id="valid2" source="{ti2}" property="text" minLength="4" maxLength="6" />
 <mx:Label text="最少4个字符，最多6个字符，谢谢！" fontSize="12"/>

 <mx:TextInput id="ti1" />
 <mx:TextInput id="ti2" />

 <mx:Button label="validate" click="clickHandler()" />

</mx:Application>