手机访问pc版网站自动跳转为手机版页面

1、PC版首页</head>标签前加上以下脚本

<script src="/tools/browser_redirect.ashx"></script>

browser_redirect.ashx输出内容为以下代码：

function getMCookie(objName) {
    var arrStr = document.cookie.split("; ");
    for (var i = 0; i < arrStr.length; i++) {
        var temp = arrStr[i].split("=");
        if (temp[0] == objName) {
            return unescape(temp[1]);
        }
    }
    return "";
}

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) {
        location.href = ''; //字符串内填写可访问的手机版域名，例如m.xxx.com，如果没有域名可直接填写/m/index.html
    }
}
var pageurl = window.location.search;
if (pageurl == '?m2w') {
    document.cookie = "m2wcookie=" + escape("1");
}
if (getMCookie("m2wcookie") != "1") browserRedirect();

2、如果在browser_redirect.ashx里填写跳转的链接为手机域名，需要在后台手机站点里绑定对应的域名，如下图所示：