js倒记时代码开发

发布时间：2020-07-10 10:20:14 作者：771541213
来源：网络阅读：663
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" >
<title></title>

</head>
<body onload="leftTimer()">

<h3>投标倒记时:</h3>

<table>
    <tr>
        <td id="days" ></td>
        <td id="hours"></td>
        <td id="minutes"></td>
        <td id="seconds"></td>
    </tr>
</table>

<style type="text/css">
    td{ background: #1e7bb3;  padding: 0 10px;  height: 50px; line-height: 50px; font-size: 30px; color: #fff; font-weight: bold;}
</style>

</body>
</html>

<script language="javascript" type="text/javascript">

var itimer=null;

function checkTime(i){ //将0-9的数字前面加上0，例1变为01

     if(i <1)
     {
        return "00";
     }
     else
     {
        if(i<10)
         {
             i = "0" + i;
         }
         return i;
     }

}
function c(a)
{
    console.log(a);
}

function leftTimer(year,month,day,hour,minute,second){

    var leftTime = (new Date(year,month-1,day,hour,minute,second)) - (new Date()); //计算剩余的毫秒数
      var days = parseInt(leftTime / 1000 / 60 / 60 / 24 , 10); //计算剩余的天数
     var hours = parseInt(leftTime / 1000 / 60 / 60 % 24 , 10); //计算剩余的小时
     var minutes = parseInt(leftTime / 1000 / 60 % 60, 10);//计算剩余的分钟
     var seconds = parseInt(leftTime / 1000 % 60, 10);//计算剩余的秒数
     var seconds11=seconds;
      days = checkTime(days);
     hours = checkTime(hours);
     minutes = checkTime(minutes);
     seconds = checkTime(seconds);

    document.getElementById("days").innerHTML = days+"天";
    document.getElementById("hours").innerHTML = hours+"小时";
    document.getElementById("minutes").innerHTML = minutes+"分";
    document.getElementById("seconds").innerHTML = seconds+"秒";

    //清除定时器任务
    if(seconds11 < 0)
    {
        clearInterval(itimer);
    }

    c(leftTime);
}

window.onload = function(){
    itimer= setInterval("leftTimer(2018,03,07,10,30,00)",1000);
}

</script>
js倒记时代码开发

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