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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
 <head>
  <script language="javascript">
  var XmlHttp=new ActiveXObject("Microsoft.XMLhttp");
  
  function sendAJAX()
  {
   XmlHttp.Open("POST","Server.aspx",true);
   XmlHttp.send(null);
   XmlHttp.onreadystatechange=ServerProcess;
  }
  
  function ServerProcess()
  {
   if (XmlHttp.readystate==4 || XmlHttp.readystate=='complete')
   {
    document.getElementById('nameList').innerHTML =XmlHttp.responsetext;
   }
  }
  
  setInterval('sendAJAX()',1000);
  
  </script>
 </head>
 <body>
  <div id="nameList"></div>
 </body>
</html>
Áí½¨Ò»Ò³ÃæServer.aspx£¬Server¶Ë
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Diagnostics;
public partial class Server : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        PerformanceCounter myMemory = new PerformanceCounter();
        myMemory.CategoryName = "Memory";
        myMemory.CounterName = "Available KBytes";
        string txtResult = "-->·þÎñÆ÷¿ÉÓÃÄÚ´æ´óС£º" + myMemory.NextValue().ToString();
        Response.Write(DateTime.Now.ToLongTimeString() + txtResult);
    }
}
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