11月16日笔记及心得

最新推荐文章于 2025-08-03 01:36:21 发布

原创最新推荐文章于 2025-08-03 01:36:21 发布 · 195 阅读

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  <title> New Document </title>
  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
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 <body>
 <input id="number" type="text" value="5">
 <ul>
    <li> <input type="button" value="-" onclick="reduce()"; > <li>
    <li> <input type="button" value="+" onclick="add()" ;> <li>
 </ul>

            <div id="dd"></div>

        <input type="button" value="开始购买" onclick="go()" ;>



 </body>
    <script type="text/javascript">
    var myVar=setInterval(function(){a()},1000);
    function a(){
    var endtime=new Date(2017,10,20,17,32,0);   
    var nowtime=new Date();
    time=endtime.getTime()-nowtime.getTime();
    day=Math.floor(time/(24*60*60*1000));//向下取整
    hour=Math.floor((time-day*24*60*60*1000)/(60*60*1000));//向下取整
    miunte=Math.floor((time-day*24*60*60*1000-hour*60*60*1000)/(60*1000));//向下取整
    second=Math.ceil((time-day*24*60*60*1000-hour*60*60*1000-miunte*60*1000)/1000);//向上取整
    miaosha="距离秒杀活动还剩"+day+"天"+hour+"小时"+miunte+"分"+second+"秒";
    document.getElementById('dd').innerHTML=miaosha;
    if (time<0)
    {clearInterval(myVar);
    document.getElementById('dd').innerHTML="秒杀开始";
    }
    };
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}

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};
function go(){if (document.getElementById('dd').innerHTML=="秒杀开始")
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}