public void DownLoadFile() { try { string strFilePath = Server.MapPath("~") + "/File/指南.pdf";//服务器文件路径 FileInfo fileInfo = new FileInfo(strFilePath); Response.Clear(); Response.Charset = "GB2312"; Response.ContentEncoding = System.Text.Encoding.UTF8; Response.AddHeader("Content-Disposition", "attachment;filename=" + Server.UrlEncode(fileInfo.Name)); Response.AddHeader("Content-Length", fileInfo.Length.ToString()); Response.ContentType = "application/x-bittorrent"; Response.WriteFile(fileInfo.FullName); Response.End(); } catch (Exception ex) { } }