添加到footer.php即可

<script>
 var OriginTitle = document.title;
 var titleTime;
 document.addEventListener('visibilitychange', function () {
     if (document.hidden) {
         document.title = '╭(°A°`)╮ 页面崩溃啦 ~';
         clearTimeout(titleTime);
     }
     else {
         document.title = '(ฅ>ω<*ฅ) 噫又好了~' + OriginTitle;
         titleTime = setTimeout(function () {
             document.title = OriginTitle;
         }, 2000);
     }
 });
</script>

或者使用下面的代码在自定义代码区加上script标签即可食用

[blockquote2 name='by limo']
limo qq2328031994
[/blockquote2]
	//网站动态标题开始 
var OriginTitile = document.title,
titleTime;
document.addEventListener("visibilitychange",
function() {
    if (document.hidden) {
        document.title = "你别走吖 Σ(っ °Д °;)っ";
        clearTimeout(titleTime)
    } else {
        document.title = "(/≧▽≦/)你又回来啦！ " ;
        titleTime = setTimeout(function() {
            document.title = OriginTitile
        },
        2000)
    }
});
//网站动态标题结束