程序实现下载文件或者打开文件

FileInfo DownloadFile = new FileInfo("c:\\a.doc"); // 下面到就是读取文件，通过数据流的方式下载了。 Response.Clear(); Response.ClearHeaders(); Response.Buffer = false; Response.ContentType = "application/octet-stream"; Response.AppendHeader("Content-Disposition", "inline;filename=" + HttpUtility.UrlEncode("c:\\a.doc", System.Text.Encoding.UTF8)); Response.AppendHeader("Content-Length", DownloadFile.Length.ToString()); Response.WriteFile(DownloadFile.FullName); Response.Flush(); Response.End(); Content-Disposition：inline是直接打开，attachment是保存。