基于javascript的显示当前年月日星期上下午(秒数不断刷新)

<script>

document.write((zjd=new Date()).getFullYear()+"年"+(zjd.getMonth()+1)+"月"+zjd.getDate() + "日 星期"+"日一二三四五六".charAt(zjd.getDay())+ " ");

</script>

</td>

<td width="373" id="currenttime">

<script>

setInterval(function(){

var date = new Date()

document.getElementById("currenttime").innerHTML = date.toLocaleTimeString();

}, 1000);

</script>

</td>