public function savePictures( obj:Object, onResult:Function, onFault:Function ):void {
var arr:Array = new Array();
for(var k:int = 0; k < obj.data.length; k++) {
var str:String = obj.data[k].@属性名称;
arr[k] = str;
}
var parameters:Object = new Object();
parameters.images = arr.join(",");