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            Stream stream = File.Open("1.jpg", FileMode.Open);
            byte[] bytes = new byte[stream.Length];
            stream.Read(bytes, 0, bytes.Length);
            DataTable table = new DataTable();
            table.Columns.Add(new DataColumn("image", typeof(byte[])));
            DataRow row = table.NewRow();
            row["image"] = bytes;
            table.Rows.Add(row);
            DataSet ds = new DataSet();
            ds.Tables.Add(table.Copy());
            ds.WriteXml("image.xml");
            //´ÓxmlÖлñȡͼƬ****************
            DataSet ds1 = new DataSet();
            ds1.ReadXml("image.xml");
            byte[] bts = (byte[])ds1.Tables[0].Rows[0]["image"]; ×¢ÒâÕâÀﱨ´í£ºÎÞ·¨½«stringת»»³Ébyte£¬ÕâÀïÈçºÎ´¦ÀíÄØ£¬²¢ÇÒÒª°ÑxmlÖеÄͼƬÐÅÏ¢¶ÁÈ¡³öÀ´£¬±£´æÊÇûÓÐÎÊÌâÁË¡£


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