UA自动跳转代码片段

适用于自适应APP下载，代码来源。

<script>
    $(function(){
        var u = navigator.userAgent;
        var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android终端
        var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端
        if(isiOS)
        {
            window.location.href = "http://jifen.2345.com/m/iosDownload.php";
//IOS跳转地址
        }
        else
        {
            window.location.href = "http://jifen.2345.com/jifenApp/mDownloadApp.php";
//安卓跳转地址
        }
    })
</script>