byte[] 和 stream 转换问题！

[yanam003]

string sPath = "C:\\Documents and Settings\\Administrator\\My Documents\\My Pictures\\82501.jpg";
FileStream fStream = new FileStream(sPath,FileMode.Open);

long iLen = fStream.Length;
byte[] bts = new byte[iLen] ;
fStream.Write(bts,0,bts.Length);


Stream stream = new MemoryStream(bts,0,bts.Length);


请高手指教一下，上面这种方式把一个Stream转换成byte[]再转换成Stream对不对？

如果对的话，那么再执行下面的步骤怎么就会出错？

Image image = Image.FromStream(stream);

这中间是不是有什么问题啊？多谢了！

[noky]

long iLen = fStream.Length;
byte[] bts = new byte[iLen] ;
这个时候你的bts数组中是空的，什么都没有写入，只是定义了数组的长度。
然后你fStream.Write(bts,0,bts.Length);
你什么都没有写入进去，淡然会出错了。
你需要一个读写器进行读写

[noky]

改为
FileStream readStream = new FileStream(sPath, FileMode.Open);
FileStream writerStream = new FileStream(str, FileMode.CreateNew);//str是你要写入的文件名
BinaryReader reader = new BinaryReader(readStream);
BinaryWriter writer = new BinaryWriter(writerStream);
byte[] bts = reader.ReadBytes(readStream.Length);
writer.Write(bts, 0, bts.Length);

[yanam003]

错了上面的fStream.Write(bts,0,bts.Length);应该是fStream.Reade(bts,0,bts.Length);我的意思是把fStream写入bts里，在把bts转成stream.

[yanam003]

已经解决了！谢了！