一个根据时间差的秒数的倒计时

C#代码：

            //算出用户填写倒计时             var dtr = remodle.UpdateTime.AddDays(3);             var dt = DateTime.Now;             var t = dtr.Subtract(dt).Duration();

            ViewBag.second = t.TotalSeconds;

//注意：这里有一个小bug  -TotalSeconds这个方法返回的是绝对值

js代码：

//倒计时 $(document).ready(function () {     var intDiff = parseInt($(".countDown").html());     countDown(intDiff); }); var time; function countDown(intDiff) {     time = window.setInterval(function () {         var day = 0,         hour = 0,         minute = 0,         second = 0;//时间默认值                 if (intDiff > 0) {             day = Math.floor(intDiff / (60 * 60 * 24));             hour = Math.floor(intDiff / (60 * 60)) - (day * 24);             minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);             second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);         } else {             stopcountDown(time);         }         $(".countDown").html(day + '天' + hour + "小时" + minute + "分钟" + second + "秒");         intDiff--;     }, 1000); } function stopcountDown() {     clearInterval(time), function() {         time = setInterval("countDown", 1000);     };

}

html代码：

  <p class="gray-text">剩余时间：<span class="countDown">@ViewBag.second</span></p>