byte[] buffer = new byte[BufferSize];

 int bytesRead;          // 读取的字节数

 MemoryStream msStream = new MemoryStream();

 do {

     bytesRead = streamToClient.Read(buffer, , BufferSize);

     msStream.Write(buffer, , bytesRead);

 } while (bytesRead > );

 buffer = msStream.GetBuffer();