using System;
 
 
// Use this line when you want to save a cookie
Response.Cookies["MyCookieName"].Value = "MyCookieValue";
// How long will cookie exist on client hard disk
Response.Cookies["MyCookieName"].Expires = DateTime.Now.AddDays(1);
// To add multiple key/value pairs in single cookie
Response.Cookies["VisitorData"]["FirstName"] = "Richard";
Response.Cookies["VisitorData"]["LastVisit"] = DateTime.Now.ToString();

string MyCookieValue;
// We need to perform this check first, to avoid null exception
// if cookie not exists
if(Request.Cookies["MyCookieName"] != null)
    MyCookieValue = Request.Cookies["MyCookieName"].Value;

// First check if cookie exists
if (Request.Cookies["MyCookieName"] != null)
{
    // Set its expiration time somewhere in the past
    Response.Cookies["MyCookieName"].Expires = DateTime.Now.AddDays(-1);

HttpCookie MyGreatCookie = new HttpCookie("MyCookieName");
MyGreatCookie.Value = "Some cookie value";
MyGreatCookie.Expires = DateTime.Now.AddDays(100);
Response.Cookies.Add(MyGreatCookie);

End If
[ C# ]
if (Request.Browser.Cookies)
{
    // Cookies supported
}
else
{
    // Web browser not supports cookies
}

在线播放

  /// <summary>
        /// 显示图片新闻列表
        /// </summary>
        /// <param name="PageSize">每页纪录数</param>
        /// <param name="PageIndex"></param>
        /// <returns></returns>
        public IList<Model.NewsInfo> PicNewsList(int PageSize, int PageIndex)
        {
            SqlParameter[] parameters = 
                {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@strGetFields", SqlDbType.VarChar, 1000),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@doCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar, 1500)
                };


            parameters[0].Value = "Njsq_News";
            parameters[1].Value = "*";
            parameters[2].Value = "NewsID";
            parameters[3].Value = PageSize;
            parameters[4].Value = PageIndex;
            parameters[5].Value = 0;
            parameters[6].Value = 1;
            parameters[7].Value = "NewsIndexPicPath IS NOT NULL";

            try
            {
                IList<Model.NewsInfo> newsList = new List<Model.NewsInfo>();

                Model.NewsInfo objNews = new NewsInfo();
                using (SqlDataReader dr = SqlHelper.ExecuteReader(SqlHelper.ConnectionStringProfile, CommandType.StoredProcedure, "UP_GetCollectionPage", parameters))
                {
                    while (dr.Read())
                    {
                        newsList.Add(Populater(dr));

                    }

                }
                return newsList;
            }
            catch (Exception e)
            {
                throw e;
            }
        }



        /// <summary>
        /// 返回UI层的幻灯片字符串
        /// </summary>
        /// <returns></returns>
        public static string PicNews()
        {
            IList<Model.NewsInfo> list = new List<Model.NewsInfo>();

            BLL.News bllNews = new News();

            list = bllNews.PicNewsList(5, 1); //调用上面的Method()

            StringBuilder retStr = new StringBuilder();

            StringBuilder retPics = new StringBuilder();

            StringBuilder retTitle = new StringBuilder();

            StringBuilder retLinks = new StringBuilder();

            string pics = "NewsCoverPic/";  //定义图片的路径,我这里是写死了，你可以设置成一个变量
            string title = string.Empty; //幻灯片中的新闻标题
            string links = "News/NewsDetail.aspx?NID="; //幻灯片中的链接格式

            for (int i = 0; i < list.Count; i++) //循环,
            {
                retPics.Append(pics).Append(list[i].NewsIndexPicPath.ToString()).Append("|");  //将图片路径获取后使用append()将图片路径串成一个字符串
                retTitle.Append(list[i].NewsTitle).Append("|"); //将标题获取后使用append()串成一个字符串
                retLinks.Append(links).Append(list[i].NewsID.ToString()).Append("|");//将链接格式及新闻参数ID获取后串成一个长字符串
            }



          string  retString="pics=" + retPics.ToString() + "&links=" + retLinks.ToString() + "&texts=" + retTitle.ToString() + "&borderwidth=340&borderheight=240&textheight=20"; //将retpics,rettitle,rettitle连成一个长字符串

          retStr.Append(retString.ToString());


            return retString.ToString(); //返回前台Flash所需的一个FlashVar的参数值
        }

 <script type="text/javascript">
               
                document.write('<embed src="Flash/ad.swf" wmode="opaque" FlashVars="<%=BLL.News.PicNews() %>" menu="false" bgcolor="#DAF3CE" quality="high" width="340" height="260" allowScriptAccess="sameDomain" type="application/x-shockwave-flash"/>');
               </script>

 public string flashUrl = "";
    public string flashAdd = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            Flash();
        
        }
    }

private void  Flash()
    {
        SqlConnection con = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["con"]);
        con.Open();
        SqlDataAdapter sda = new SqlDataAdapter("select  * from flash order by createdate Desc ", con);
        DataSet ds = new DataSet();
        sda.Fill(ds, "flash");
        DataView dv = ds.Tables[0].DefaultView;
       if(dv.Table.Rows.Count != 0)
        {
            for (int i = 0; i < dv.Table.Rows.Count; i++)
            {
                flashAdd += dv.Table.Rows[i]["FlashHref"].ToString() + "|";
                flashUrl += dv.Table.Rows[i]["FlashUrl"].ToString() + "|";
            }
            flashAdd = flashAdd.Substring(0, flashAdd.LastIndexOf("|"));
            flashUrl = flashUrl.Substring(0, flashUrl.LastIndexOf("|"));

        }