<script type="text/javascript">

//检查设备是PC还是手持设备

        var sUserAgent = navigator.userAgent.toLowerCase();   //浏览器的用户代理设置为小写，再进行匹配

        var isIpad = sUserAgent.match(/ipad/i) == "ipad";   //或者利用indexOf方法来匹配

        var isIphoneOs = sUserAgent.match(/iphone os/i) == "iphone";

        var isMidp = sUserAgent.match(/midp/i) == "midp";  //移动信息设备描述MIDP是一套Java应用编程接口，多适用于塞班系统

        var isUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";  //CVS标签

        var isUc = sUserAgent.match(/ucweb/i) == "ucweb";

        var isAndroid = sUserAgent.match(/android/i) == "android";

        var isCe = sUserAgent.match(/windows ce/i) == "windows ce";

        var isWM = sUserAgent.match(/windows mobil/i) == "windows mobil";

        if (isIpad || isIphoneOs || isMidp || isUc7 || isUc || isAndroid || isCe || isWM) {

            location.href="http://www.baidu.com";

        } else {

        }

</script>

本文转自 IT阿飞 51CTO博客，原文链接:http://blog.51cto.com/itafei/1748106