js实现时分秒倒计时，兼容ios
2019-11-26 本文已影响0人
吴涛涛
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>倒计时</title>
</head>
<body>
<div>
<!--<span id="_d">00</span>-->
<span id="_h">00</span>
<span id="_m">00</span>
<span id="_s">00</span>
<!--<span id="_ms">00</span> -->
</div>
<script type="text/javascript">
function countTime() {
var date = new Date();
var now = date.getTime();
var endDate = new Date("2019-12-01 00:00:00".replace(/-/g,'/'));//设置截止时间
var end = endDate.getTime();
var leftTime = end - now; //时间差
var d, h, m, s, ms;
if(leftTime >= 0) {
// d = Math.floor(leftTime / 1000 / 60 / 60 / 24);
h = Math.floor(leftTime / 1000 / 60 / 60);
m = Math.floor(leftTime / 1000 / 60 % 60);
s = Math.floor(leftTime / 1000 % 60);
ms = Math.floor(leftTime % 1000);
if(ms < 100) {
ms = "0" + ms;
}
if(s < 10) {
s = "0" + s;
}
if(m < 10) {
m = "0" + m;
}
if(h < 10) {
h = "0" + h;
}
} else {
console.log('已结束。。。')
}
//将倒计时赋值到div中
// document.getElementById("_d").innerHTML = d + "天";
document.getElementById("_h").innerHTML = h + "时";
document.getElementById("_m").innerHTML = m + "分";
document.getElementById("_s").innerHTML = s + "秒";
// document.getElementById("_ms").innerHTML = ms + "毫秒";
//递归每秒调用countTime方法，显示动态时间效果
setTimeout(countTime, 50);
}
countTime();
</script>
</body>
</html>
