C#的Cokies写值

C#的Cokies写值：

        /// <summary>
        /// 写Cookie值
        /// </summary>
        /// <param name="cookieName">名称</param>
        /// <param name="cookieValue">值</param>
        /// <param name="cookieDomain">Cookie域</param>
        /// <param name="expires">过期时间</param>
        public static void WriteCookie(string cookieName, string cookieValue, string cookieDomain, string cookiePath, DateTime expires)
        {
            HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];
            if (cookie == null)
            {
                cookie = new HttpCookie(cookieName);
            }
            cookie.Value = HttpUtility.UrlEncode(cookieValue);
            cookie.Expires = expires;
            cookie.Path = (string.IsNullOrEmpty(cookiePath)) ? @"/" : cookiePath;
            if (cookieDomain != string.Empty && HttpContext.Current.Request.Url.Host.IndexOf(cookieDomain) > -1)
            {
                cookie.Domain = cookieDomain;
            }
            HttpContext.Current.Response.AppendCookie(cookie);

        }