今天研究了點Flex技術，做了一個小的Demo，在測試時發現經常報錯，網上一查發現是瀏覽器Flash Player版本較低造成（需要10及其以上的版本）的，對此總結了一下借助JavaScript腳本判斷瀏覽器Flash Player資訊的方法：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>JavaScript判断浏览器Flash Player信息</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<script type="text/javascript">
function checkFlashPlayer(){
var hasFlashPlayer=0; //判断是否安装了Flash Player
var flashPlayerVersion=0; //Flash Player版本
if(document.all){
var shockWaveFlash = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
if(shockWaveFlash) {
hasFlashPlayer=1;
flashPlayerVersion=parseInt(shockWaveFlash.GetVariable("$version").split(" ")[1].split(",")[0]);
}
}else if (navigator.plugins && navigator.plugins.length > 0){
var shockWaveFlash=navigator.plugins["Shockwave Flash"];
if (shockWaveFlash){
hasFlashPlayer=1;
var descriptionInfo = shockWaveFlash.description.split(" ");
for (var i = 0; i < descriptionInfo.length; ++i){
if (isNaN(parseInt(descriptionInfo[i]))){
continue;
}
flashPlayerVersion = parseInt(descriptionInfo[i]);
}
}
}
return {hasFlashPlayer:hasFlashPlayer, flashPlayerVersion:flashPlayerVersion};
}
if(checkFlashPlayer().hasFlashPlayer){
if(checkFlashPlayer().flashPlayerVersion <= 10){
if(confirm("您的Flash Player版本过低，立即升级Flash Player版本？")){
window.location.href="http://get.adobe.com/cn/flashplayer/" rel="external nofollow" rel="external nofollow" ;
}
}else{
alert("您安装了Flash Player，当前Flash Player版本号为："+checkFlashPlayer().flashPlayerVersion+"。");
}
}else{
if(confirm("您没有安装Flash Player，立即安装？")){
window.location.href="http://get.adobe.com/cn/flashplayer/" rel="external nofollow" rel="external nofollow" ;
}
}
</script>
</head>
<body>
</body>
</html>
