Jquery高考倒计时

//  先引入Jquery文件
<span id="timestr"><span>
<script type="text/javascript">
    // var scount = 0;
    $(function () {
      var start = setInterval(function () {
        var dtstr = "";
        var now = new Date();           //初始化当前时间
        var newdatr = new Date(now.getFullYear(), "05", "07", "00", "00", "00", "00");//初始化目标时间(这里的05实际上是六月)
        var nowhms = now.getTime();     //当前时间转换毫秒
        var newhms = newdatr.getTime(); //目标时间转换毫秒
        var cha = newhms - nowhms;      //时间差(毫秒数)
        if (cha > 0) {
          var day = parseInt(cha / (1000 * 60 * 60 * 24));//计算天数
          var hh = parseInt((cha % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));//计算小时
          var min = parseInt(((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) / (1000 * 60));//计算分钟
          var ss = parseInt((((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) % (1000 * 60)) / 1000);//计算秒
          /*if (ss == 0) {
            scount += 1;
          }*/
          //var ms = parseInt((((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) % (1000 * 60)) % 1000);
          dtstr = day + " 天 " + hh + " 小时 " + min + " 分钟 " + ss + " 秒 ";
        }
        $("#timestr").html(dtstr);
      }, 1000);
    });
</script>

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转载自blog.csdn.net/createNo_1/article/details/80092271