图片以二进制流输出二种方法

System.IO.MemoryStream ms = new System.IO.MemoryStream(); System.IO.Stream str = new FileUpload().PostedFile.InputStream; System.Drawing.Bitmap map = new System.Drawing.Bitmap(str); map.Save(ms, System.Drawing.Imaging.ImageFormat.Gif); Response.ClearContent(); Response.ContentType = "image/gif"; Response.BinaryWrite(ms.ToArray()); 第二种方法: System.IO.FileStream fs = new System.IO.FileStream("Filename", System.IO.FileMode.Open, System.IO.FileAccess.Read); byte[] datas = new byte[fs.Length]; fs.Read(datas, 0, Convert.ToInt32(fs.Length)); fs.Close(); Response.OutputStream.Write(datas,0,Convert.ToInt32(fs.Length)); Response.End();