WCF 传输 Byte[] 部分代码 无觉

//客户端调用
            using (FileStream fs = new FileStream(sourceFilePath, FileMode.Open))
            {
                byte[] bytes = new byte[fs.Length];

                fs.Read(bytes, 0, bytes.Length);

                // 设置当前流的位置为流的开始 

                fs.Seek(0, SeekOrigin.Begin);

                fs.Close();
                fs.Dispose();
                var client = new MvcCallWCFService.UnZipFileService.ZipServiceClient();
                client.DoWork();
                client.ZipFileUpload(bytes, "22-140-133", "bl96");
            }

           byte[] bytes = streamBytes;

            // 把 byte[] 写入文件  
            var path = GetTempPath();

            //创建文件夹地址（不存在就创建）
            CreateDirectory(path);

            //指定文件保存格式
            var filePath = path + @"\A.Zip";

            //写入本地临时文件
            using (FileStream fs = new FileStream(filePath, FileMode.Create))
            {
                BinaryWriter bw = new BinaryWriter(fs);
                bw.Write(bytes);
                bw.Close();
                fs.Close();
            }

        /// <summary>
        /// 得到临时文件
        /// </summary>
        /// <returns></returns>
        private string GetTempPath()
        {
            //获取一个临时文件夹 
            string tempPath = Path.GetTempPath();

            string savePath = tempPath + @"UnZipTemp" + new Random().Next(20).ToString();
            CreateDirectory(savePath);
            return savePath;
        }