js判断是否是pc端打开还是手机端打开

根据浏览器头判断是使用神马设备打开的网页

 <script type="text/javascript">

        function is_mobile() {

            var regex_match = /(nokia|iphone|android|motorola|^mot-|softbank|foma|docomo|kddi|up.browser|up.link|htc|dopod|blazer|netfront|helio|hosin|huawei|novarra|CoolPad|webos|techfaith|palmsource|blackberry|alcatel|amoi|ktouch|nexian|samsung|^sam-|s[cg]h|^lge|ericsson|philips|sagem|wellcom|bunjalloo|maui|symbian|smartphone|midp|wap|phone|windows ce|iemobile|^spice|^bird|^zte-|longcos|pantech|gionee|^sie-|portalmmm|jigs browser|hiptop|^benq|haier|^lct|operas*mobi|opera*mini|320x320|240x320|176x220)/i;

            var u = navigator.userAgent;

            if (null == u) {
                return true;
            }
            var result = regex_match.exec(u);
            if (null == result) {
                return false
            } else {
                return true
            }

        }
        if (is_mobile()) {
            document.location.href = 'https://www.baidu.com/';
        }else {
            document.location.href = 'https://www.baidu.com/';

        }

    </script>

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