flex中检测操作系统和播放器类型

yimogod

检测操作系统：
使用flash.system.Capabilities.os
var os:String = flash.system.Capabilities.os.substr(0, 3);if(os == "Win"){//for windows code}else if (os == "Mac"){//for mac code}else{//in common, for linux/unix code}  
检查播放器类型：
使用flash.system.Capabilities.playerType
if(flash.system.Capabilities.playerType == "plugin"){//code for mozilla}else if (flash.system.Capabilities.playerType == "ActiveX"){//code for IE}else{}