flex小问题

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
  private var aname:String ;

  private function callservice():void{
  aname = input1.text
  }
]]>
</mx:Script>
<mx:TextInput x="83" y="79" id="input1"/>
<mx:Text x="213" y="284" text="{aname}" width="184"/>
<mx:Button x="287" y="182" label="Button" click="callservice()"/>
</mx:Application>

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引用

<![CDATA[
[Bindable]
  public var aname:String;

  private function callservice():void{
  aname = input1.text
  }
]]>

[Bindable]是什么意思啊？

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绑定.
这样aname 变更 Text  值也跟着变更>

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谢谢啦。。。。。。。