本文實例為大家分享了精確到毫秒的倒計時效果，供大家參考，具體內容如下
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title></title>
<style>
div{
width: 100%;
height: 50px;
margin-bottom: 5px;
background: yellowgreen;
}
</style>
</head>
<body>
<h2>毫秒的倒計時</h2>
<div id="timer1"></div>
<div id="timer2"></div>
<div id="timer3"></div>
<div id="timer4"></div>
<script>
var addTimer = function(){
var list = [],
interval;
return function(id,timeStamp){
if(!interval){
interval = setInterval(go,1);
}
list.push({ele:document.getElementById(id),time:timeStamp});
}
function go() {
for (var i = 0; i < list.length; i++) {
list[i].ele.innerHTML = changeTimeStamp(list[i].time);
if (!list[i].time)
list.splice(i--, 1);
}
}
//傳入unix時間戳，得到倒計時
function changeTimeStamp(timeStamp){
var distancetime = new Date(timeStamp*1000).getTime() - new Date().getTime();
if(distancetime > 0){
//如果大於0.說明尚未到達截止時間
var ms = Math.floor(distancetime%1000);
var sec = Math.floor(distancetime/1000%60);
var min = Math.floor(distancetime/1000/60%60);
var hour =Math.floor(distancetime/1000/60/60%24);
if(ms<100){
ms = "0"+ ms;
}
if(sec<10){
sec = "0"+ sec;
}
if(min<10){
min = "0"+ min;
}
if(hour<10){
hour = "0"+ hour;
}
return hour + ":" +min + ":" +sec + ":" +ms;
}else{
//若否，就是已經到截止時間了
return "已截止！"
}
}
}();
addTimer("timer1",1451923200);//1月5日00點，unix時間戳自己去百度一下，就有的
addTimer("timer2",1451926800);//1月5日01點
addTimer("timer3",1451930400);//1月5日02點
addTimer("timer4",1452020400);//1月6日03點
</script>
</body>
</html>
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持。