/// <summary>
        /// 删除文件
        /// </summary>
        /// <param name="fileUrl">路径</param>
        public static void DeleteImgFile(string fileUrl)
        {
                string file =System.Web.HttpContext.Current.Server.MapPath(fileUrl);
                if (System.IO.File.Exists(file))
                {
                    System.IO.File.Delete(file);
                }
        }


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