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    private void SetPageNoCache()
        {
            Response.Buffer = true;
            Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
            Response.Expires = 0;
            Response.CacheControl = "no-cache";
            Response.AddHeader("Pragma", "No-Cache");
        }
    (1)   Response.Buffer = true;
            Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
            Response.Expires = 0;
            Response.CacheControl = "no-cache";
            Response.AddHeader("Pragma", "No-Cache");
    (2) HTML·½·¨
        <meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Cache-Control" content="no-cache">
<meta http-equiv="Expires" content="0">
    (3) ÖØÐµ÷ÓÃÔ­Ò³ÃæµÄʱºòÔÚ¸øÒ³Ãæ´«Ò»¸ö²ÎÊý:    href="****.aspx?random()"


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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Ref_and_Out_test
{
    class Program
    {
        static void Main(string[] args)
      & ......

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using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
namespace PortScanner
{
class Program
{
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¡¡internal static int scannedCount = 0;
¡¡//ÕýÔÚÔËÐеÄÏß³ÌÊýÄ¿
¡¡internal static int ru ......
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