<head>

 <script src=”jQuery/jquery-1.4.1.min.js” type=”text/javascript”></script>

  
        <script>
            $(document).ready(function () {
              
               setInterval(“startRequest()”,1000);
             
            });
           
            function startRequest()
            {
                $(“#date”).text((new Date()).toString());
            }
        </script>
  
</head>

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本文链接：https://www.cnblogs.com/mofish/archive/2010/11/17/1879887.html