var uri = new Uri("http://www.aa.com");

            //often cookies are stored on domain level, so ".google.com", not "www.google.com" (leading dot is important)

            string host = uri.Host.Replace("www", "");

            CookieManager.Add(host, "/", "cookieName", "cookieValue", false, false, false, ConvertDateTimeInt(DateTime.Now.AddYears()));

        /// <summary>

        /// DateTime时间格式转换为Unix时间戳格式

        /// </summary>

        /// <param name="time"> DateTime时间格式</param>

        /// <returns>Unix时间戳格式</returns>

        public static int ConvertDateTimeInt(System.DateTime time)

        {

            System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(, , ));

            return (int)(time - startTime).TotalSeconds;

        }