Msun

推荐一些Flex视频教程：

Adobe Labs的http://labs.adobe.com/technologies/flash/videos/

RIAMeeting对应翻译的中文版http://www.riameeting.com/riavideo

RIAMeeting里的字幕是外挂的，试着破译了一下，关键代码如下：

private function test() : void {
var loader : URLLoader = new URLLoader();
loader.addEventListener(Event.COMPLETE, loaderHandler);
loader.load(new URLRequest("http://www.riameeting.com/videoxml.php?nid=36"));
}

private function loaderHandler(event : Event) : void {
var charAscii : Number;
var encoded : String = String(event.target.data);
var charCount [...]