cookie

<script>
(function() {
    var OriginTitile = document.title, titleTime;
    document.addEventListener('visibilitychange', function() {
        if (document.hidden) {
            document.title = '歪，你去哪里了？';
            clearTimeout(titleTime);
        } else {
            document.title = '(つェ⊂)咦，又回来了!';
            titleTime = setTimeout(function() {
                document.title = OriginTitile;
            },2000);
        }
    });
})();
</script>

这串代码加进去会感觉逼格高了一点点，建议楼主更新加进去