/// 
        /// 复制流        /// 
        /// 原始流        /// 目标流        public static void CopyStream(System.IO.Stream input, System.IO.Stream output)        {            byte[] buffer = new byte[2000];            int len;            while ((len = input.Read(buffer, 0, 2000)) > 0)            {                output.Write(buffer, 0, len);            }            output.Flush();        }        /// 
        /// 压缩字节数组        /// 
        /// 需要被压缩的字节数组        /// 
     
      压缩后的字节数组
             private static byte[] compressBytes(byte[] sourceByte)        {            MemoryStream inputStream = new MemoryStream(sourceByte);            Stream outStream = compressStream(inputStream);            byte[] outPutByteArray = new byte[outStream.Length];            outStream.Position = 0;            outStream.Read(outPutByteArray, 0, outPutByteArray.Length);            outStream.Close();            inputStream.Close();            return outPutByteArray;        }        /// 
        /// 解压缩字节数组        /// 
        /// 需要被解压缩的字节数组        /// 
     
      解压后的字节数组
             private static byte[] deCompressBytes(byte[] sourceByte)        {            MemoryStream inputStream = new MemoryStream(sourceByte);            Stream outputStream = deCompressStream(inputStream);            byte[] outputBytes = new byte[outputStream.Length];            outputStream.Position = 0;            outputStream.Read(outputBytes, 0, outputBytes.Length);            outputStream.Close();            inputStream.Close();            return outputBytes;        }        /// 
        /// 压缩流        /// 
        /// 需要被压缩的流        /// 
     
      压缩后的流
             private static Stream compressStream(Stream sourceStream)        {            MemoryStream streamOut = new MemoryStream();            ZOutputStream streamZOut = new ZOutputStream(streamOut, zlibConst.Z_DEFAULT_COMPRESSION);            CopyStream(sourceStream, streamZOut);            streamZOut.finish();            return streamOut;        }        /// 
        /// 解压缩流        /// 
        /// 需要被解压缩的流        /// 
     
      解压后的流
             private static Stream deCompressStream(Stream sourceStream)        {            MemoryStream outStream = new MemoryStream();            ZOutputStream outZStream = new ZOutputStream(outStream);            CopyStream(sourceStream, outZStream);            outZStream.finish();            return outStream;        }

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