在AS3中查找(加载)图像大小(Action Script 3.0)

import flash.display.Loader;
import flash.net.URLRequest;

var loader:Loader = new Loader();
var url:String = "path/to/your/image.jpg";
var request:URLRequest = new URLRequest(url);
loader.load(request);

loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onImageLoaded);

function onImageLoaded(event:Event):void {
    var imageWidth:Number = event.target.width;
    var imageHeight:Number = event.target.height;
    trace("Image width: " + imageWidth + ", Image height: " + imageHeight);
}