<div id="time"></div>
<script>
var aim=new Date('2022/11/11')
setInterval(function(){
var date=new Date()
var sub=Math.ceil((aim-date)/1000)
var day=parseInt(sub/(60*60*24))
var hour=parseInt((sub/(60*60))%24)
var minute=parseInt((sub/60)%60)
var seconds=sub%60
var str="距离双11还有"+day+"天"+hour+"时"+minute+"分"+seconds+"秒"
time.innerHTML=str
},1000)
</script>
运行结果：
