javascript 年月日时钟

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

   <title>倒计时</title>

</head>

<body>

<input type="text" value="" id="input" size="1000"/>

<script type="text/javascript">

   function counter() {

      var date = new Date();

      var year = date.getFullYear();

      var date2 = new Date(year, 12, 31, 23, 59, 59);

      var time = (date2 - date)/1000;

      var day =Math.floor(time/(24*60*60))

      var hour = Math.floor(time%(24*60*60)/(60*60))

      var minute = Math.floor(time%(24*60*60)%(60*60)/60);

      var second = Math.floor(time%(24*60*60)%(60*60)%60);

      var str = year + "年还剩"+day+"天"+hour+"时"+minute+"分"+second+"秒";

      document.getElementById("input").value = str;

   }

   window.setInterval("counter()", 1000);

</script>

</body>

</html>

 

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