javascript页面上使用动态时间具体实现

复制代码 代码如下:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

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

  <title>无标题文档</title>

  <script type="text/javascript">

  //页面上动态时间

  function time() {

  var dt;

  var date = new Date();

  dt = date.getFullYear()

  + "/"

  + date.getMonth()

  + "/"

  + date.getDate()

  + " "

  + (date.getHours() <= 9 ? '0' + date.getHours() : date

  .getHours())

  + ":"

  + ((date.getMinutes() <= 9 ? '0' + date.getMinutes() : date

  .getMinutes()))

  + ":"

  + (date.getSeconds() <= 9 ? '0' + date.getSeconds() : date

  .getSeconds());

  //document.getElementById("ht").innerHTML=dt;

  return dt;

  }

  setInterval("document.getElementById('ht').innerHTML=time()", 1000);

  </script>

  </head>

  <body>

  <span id="ht"></span>

  </body>

  </html>