flex actionScript读取文件示例代码（flex 什么意思）万万没想到

public class TxtLoader
{
private var setTxt:Function=null;
public function TxtLoader()
{
}

public function loadTxt(fileName:String, setTxt:Function):void {
this.setTxt=setTxt;
var urlRequest:URLRequest=new URLRequest(fileName);
var urlLoader:URLLoader=new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, complete);
urlLoader.load(urlRequest);
}

private function complete(event:Event):void {
var urlLoader:URLLoader=event.currentTarget as URLLoader;
setTxt.call(null, urlLoader.data);
}
}

—————–调用的方法————————————————————-

new TxtLoader().loadTxt(‘readme.txt’, function(txt:String):void {

Alert.show( txt);

});