Asp.net 得到Cookie中值

    將 Cookie中的值顯示在頁面上，代碼如下：

public   partial   class  _Default : System.Web.UI.Page 
{
     protected   void  Page_Load( object  sender, EventArgs e)
    {
         // 讀取Cookie中的值 scott 20080610
         if  (Request.Cookies.Count  >   0 )
        {

            HttpCookieCollection hccCookie  =   new  HttpCookieCollection();
             // 得到用戶端Cookie
            hccCookie  =  Request.Cookies;

             // 得到所有Key
             string [] sArr  =  hccCookie.AllKeys;
            Response.Write( " hccCookie.allKeys 數量 " + sArr.Length + " <br> " );
            HttpCookie hc;
             int  i  =   1 ;
             foreach  ( string  sCookie  in  Request.Cookies.AllKeys)
            {
                Response.Write( " 第 "   +  i  +   " 值： <br> " );
                hc  =  hccCookie[sCookie];
                Response.Write(ConvertUtf8(sCookie)  +   " 是否含有子key：  "   +  hc.HasKeys  +   " <br> " );

                 // 判斷有沒有子Key。如果有，循環得出值
                 if  (hc.HasKeys)
                {
                    Response.Write( " 子Key值為： <br> " );
                     foreach  ( string  sVar  in  hc.Values)
                    {
                         string  cookieSubKey  =  ConvertUtf8(sVar);
                         string  cookieSubValue  =  ConvertUtf8(hc[sVar]);
                        Response.Write(cookieSubKey  +   " ：  "   +  cookieSubValue  +   " <br> " );
                    }
                }
                 // 沒有子key時，直接得出值
                 else
                {
                    Response.Write(ConvertUtf8(sCookie)  +   " 的值: "   +  ConvertUtf8(hc.Value)  +   " <br> " );
                }

                i ++ ;
            }
        }
    }

     ///   <summary>
     ///  將內容轉成Utf8
     ///   </summary>
     ///   <param name="asValue"></param>
     ///   <returns></returns>
     private   string  ConvertUtf8( string  asValue)
    {
        System.Text.Encoding encValue  =  System.Text.Encoding.GetEncoding( " utf-8 " );
         // HttpUtility：提供用于在处理 Web 请求时编码和解码 URL 的方法。
         string  sReturn  =  HttpUtility.UrlDecode(asValue, encValue);
         return  sReturn;
    }
}