<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>倒计时</title>
<script src="https://cdn.bootcss.com/jquery/1.9.1/jquery.min.js"></script>
</head>
<body>
<div>
距离开奖还有：
<span class="count-down-time"></span>
</div>
<script>
$(function () {
let surplus, d, h, m, s;
function currentTime() {
let date = new Date();
// 获取当前时间
let now = date.getTime();
// 设置截止时间
let str = "2018/11/15 12:30:00";
let end = new Date(str).getTime();
// 时间差
let leftTime = end-now;
if (leftTime >= 0) {
d = Math.floor(leftTime/1000/60/60/24);
h = Math.floor(leftTime/1000/60/60%24);
m = Math.floor(leftTime/1000/60%60);
s = Math.floor(leftTime/1000%60);
surplus = d + "天"+ h + "时" + m + "分" + s + "秒";
}
$(".count-down-time").html(surplus)
}
currentTime();
setInterval(currentTime, 1000)
})
</script>
</body>
</html>
