C#.NET文件下载（二进制流方式）

对于有具体物理路径的文件下载，我们可以采用下面的思路，先将其转化成二进制流，然后用浏览器读出来，具体代码如下： **//// <summary>         /// 下载文件         /// </summary>         /// <param name="path">文件所在的物理路径</param>         /// <param name="fileName">文件名称</param>         /// <param name="contentType">客户端MIME类型</param>         private void UpLoadFile(string path, string fileName）//, string contentType)         {              FileInfo fi = new FileInfo(path);              FileStream fs = fi.OpenRead();             byte[] FileArray = new byte[(int)fs.Length];              fs.Read(FileArray, 0, FileArray.Length);              fs.Close();              Response.Buffer = true;              Response.Clear();              //Response.ContentType = contentType;              Response.AddHeader("Content-Disposition", "attachment;filename=" + fileName);              Response.BinaryWrite(FileArray);              Response.Flush();              Response.End();          }