Question

如何用js判断是用电脑访问还是用手机访问网站

Answer 1

这里有两种比较简单的方法可以使用：
解决方案一
<script type="text/javascript">
//判断是否移动端访问
browserRedirect();
function browserRedirect() {
var sUserAgent = navigator.userAgent.toLowerCase();
var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
var bIsMidp = sUserAgent.match(/midp/i) == "midp";
var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
var bIsAndroid = sUserAgent.match(/android/i) == "android";
var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";

if (!(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM)) {
//window.location.href = "http://gz.gzwhir.com/jpcg201409177619/index.aspx";
}
}
</script>

解决方案二
<script src="http://siteapp.baidu.com/static/webappservice/uaredirect.js" type="text/javascript"></script>
<script type="text/javascript">uaredirect("你的手机版网址");</script>

Answer 2

function IsPC() {    //返回False为移动端
    var userAgentInfo = navigator.userAgent;
    var Agents = ["Android", "iPhone",
                "SymbianOS", "Windows Phone",
                "iPad", "iPod"];
    var flag = true;
    for (var v = 0; v < Agents.length; v++) {
        if (userAgentInfo.indexOf(Agents[v]) > 0) {
            flag = false;
            break;
        }
    }
    return flag;
}