function updateClock(){const n=new Date,t=n.getFullYear(),i=String(n.getMonth()+1).padStart(2,"0"),r=String(n.getDate()).padStart(2,"0"),u=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"][n.getDay()],f=String(n.getHours()).padStart(2,"0"),e=String(n.getMinutes()).padStart(2,"0"),o=String(n.getSeconds()).padStart(2,"0"),s=`${t}年${i}月${r}日  ${u}  ${f}:${e}:${o}`;document.getElementById("datetime").textContent=s}document.addEventListener("DOMContentLoaded",function(){updateClock();setInterval(updateClock,1e3)})