倒计时

html页面代码：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<center>
    <span></span>
</center>
</body>
</html>
<script src="__STATIC__/jquery-3.3.1.min.js"></script>
<script>
    $(document).ready(function () {
        window.setInterval(function () {
            //获取当前时间
            var now_time = new Date();
            // alert(now_time)
            //获取结束时间
            var end_time = new Date('2018-09-20 00:00:00');
            //计算时间差
            var t = end_time.getTime() - now_time.getTime();
            if (t>0){
                var day = Math.floor(t/1000/60/60/24);
                var hour = Math.floor(t/1000/60/60%24);
                var minute = Math.floor(t/1000/60%60);
                var second = Math.floor(t/1000%60);
            }
            $('span').html(day+"天"+hour+"小时"+minute+"分钟"+second+"秒");
        },1000);
    })
</script>
posted @ 2018-09-28 21:01  TYY0728  阅读(164)  评论(0)  编辑  收藏  举报