[AIR] AS3读取本地文件夹中的文件

import flash.filesystem.File;
import flash.net.URLLoader;
//var dir:File = File.desktopDirectory;
//var dir:File = File.applicationStorageDirectory;
var dir:File = File.applicationDirectory;
dir = dir.resolvePath("a/");
var files:Array = dir.getDirectoryListing();
for (var i:int = 0; i <files.length; i++) {
    trace(files[i].name);
    trace((files[i] as File).nativePath);
}