/// <summary>
        /// 获得一天中所有的费用
        /// </summary>
        /// <returns></returns>
        private string GetFy(string days)
        {
            string s = bllga.GetAllByday("CONVERT(varchar(100), ga_date,23)='" + days + "'");

            if (s == "")
            {
                return("0.00");
            }
            return(s);
        }