!(function () {
    return;
    function debounce(func, wait, immediate) {
        var timeout, result;

        return function () {
            var context = this;
            var args = arguments;
            if (timeout) cleartimeout(timeout);
            if (immediate) {
                // 如果已经执行过，不再执行
                var callnow = !timeout;
                timeout = settimeout(function () {
                    timeout = null;
                }, wait);
                if (callnow) result = func.apply(context, args);
            } else {
                timeout = settimeout(function () {
                    func.apply(context, args);
                }, wait);
            }
            return result;
        };
    }
    window.onresize = debounce(
        function () {
            var clientwidth = document.documentelement.clientwidth;
            var roothtml = document.documentelement;
            var design_width = 1920;
            var rem_size = (16 / design_width) * clientwidth;
            console.log('rem size :>> ', rem_size);
            roothtml.style.fontsize = `${rem_size}px`;
        },
        1000,
        false
    );
})();