ASP.NET檔案的下載

　　　　 /// <summary>        /// 下載檔案        /// </summary>        /// <param name="filePath">檔案的路徑</param>        /// <param name="fileName">檔案名稱(有時候檔案名稱存在資料庫中用於替換路徑中的檔案名稱)</param>        public void FileDownLoad(string filePath, string fileName)        {            //判斷檔案是否存在            if (System.IO.File.Exists(filePath))            {                FileInfo file = new FileInfo(filePath);                Response.Clear();                Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(fileName));//解決中文檔案名稱亂碼                   Response.AddHeader("Content-Length", file.Length.ToString());                Response.ContentType = "application/octet-stream";                Response.Filter.Close();                Response.WriteFile(file.FullName);                Response.End();            }        }