原文链接: http://www.baidu.com/link?url=8-mS_wTlQi5MGvLQ8Oqf34wA-glS4roi0AmMswussY3kpkXoVUnOQQOaj-NGf2IkOOf9XKXnvSVkT77wdCvKB_&wd=as3%20%E6%B5%8F%E8%A7%88%E5%99%A8&ie=utf-8&f=8&tn=baidu&bs=as3%20%E6%A3%80%E6%B5%8B%E6%B5%8F%E8%A7%88%E5%99%A8

获取URL:

ExternalInterface.call("function getURL(){return window.location.href;}");

获取浏览器信息:

ExternalInterface.call("function getBrowser(){return navigator.userAgent;}");

关于AS3获取当前URL和浏览器信息