function IsPC() {//获取设备是否为PC的方法
            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;
    };


var isPC=IsPC();//获取是否为PC端
    if(!isPC){//如果是PC端加载PC的js和css
            
(function(win) {
    var doc = win.document;
    var docEl = doc.documentElement;
    var tid;

    function refreshRem() {
        var width = docEl.getBoundingClientRect().width;
//      if (width > 750) { // 最大宽度
//          width = 750;
//      }
        var rem = width / 7.5; 
        docEl.style.fontSize = rem + 'px';
    }

    win.addEventListener('resize', function() {
        clearTimeout(tid);
        tid = setTimeout(refreshRem, 300);
    }, false);
    win.addEventListener('pageshow', function(e) {
        if (e.persisted) {
            clearTimeout(tid);
            tid = setTimeout(refreshRem, 300);
        }
    }, false);

    refreshRem();

})(window);
}