数据库操作（返回数组）

 /// <summary>
        /// 查询，关联表，返回字符串，然后在后台分隔
        /// </summary>
        /// <param name="dishid"></param>
        /// <param name="ShopID"></param>
        /// <param name="AppID"></param>
        /// <returns></returns>
        public static string[] getDish_DishTagID(int dishid, int ShopID, int AppID)
        {
            string sql = "SELECT TagID FROM Dish_DishTags WHERE DishID=@DishID and ShopID=@ShopID and AppID=@AppID";
            DbCommand cmd = Db_CanYin.GetSqlStringCommand(Convert.ToString(Sql));
            Db_CanYin.AddInParameter(cmd, "@AppID", DbType.Int32, AppID);
            Db_CanYin.AddInParameter(cmd, "@ShopID", DbType.Int32, ShopID);
            Db_CanYin.AddInParameter(cmd, "@DishID", DbType.Int32, dishid);
            return new string[] { "", "" };
            //return Convert.ToString(Db_CanYin.ExecuteScalar(cmd));
        }