private bool Upload(KeyValuePair<string, string>[] paramString,Stream paramFileStream)

        {

            var actionUrl = $"{_websiteUrl}/********";

            byte[] paramFileBytes = new byte[paramFileStream.Length];

            paramFileStream.Read(paramFileBytes, 0, paramFileBytes.Length);

            // 设置当前流的位置为流的开始

            paramFileStream.Seek(0, SeekOrigin.Begin);

            Func<Task<bool>> task = async () =>

            {

                using (var client = CreateHttpClient())

                {

                    using (var formData = new MultipartFormDataContent())

                    {

                        foreach (var keyValuePair in paramString)

                        {

                            formData.Add(new StringContent(keyValuePair.Value), keyValuePair.Key);

                        }

                        //var fileContent = new ByteArrayContent(paramFileBytes);

                        HttpContent fileStreamContent = new StreamContent(paramFileStream);

                        fileStreamContent.Headers.ContentDisposition = new System.Net.Http.Headers.ContentDispositionHeaderValue("form-data")

                        {

                            Name = "files",

                            Size = 1,

                            FileName = "201809.xlsx"

                        };

                        fileStreamContent.Headers.ContentType = new MediaTypeHeaderValue("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");

                        //formData.Add(fileContent, "files");

                        formData.Add( fileStreamContent, "files", "201809.xlsx");

                        client.DefaultRequestHeaders.Add("UserToken", _clientAuth.GetToken());

                        var respMessage = await client.PostAsync(FixUrl(actionUrl), formData).ConfigureAwait(false);

                        if (!respMessage.IsSuccessStatusCode)

                        {

                            return false;

                        }

                        //respMessage.EnsureSuccessStatusCode();

                        Byte[] rawBytes = await respMessage.Content.ReadAsByteArrayAsync().ConfigureAwait(false);

                        var content = ClientEncoding.GetString(rawBytes, 0, rawBytes.Length);

                        return true;

                    }

                }

            };

            return RunSync(task);

        }

        public static TResult RunSync<TResult>(Func<Task<TResult>> func, bool await = false)

        {

            CultureInfo cultureUi = CultureInfo.CurrentUICulture;

            CultureInfo culture = CultureInfo.CurrentCulture;

            return _myTaskFactory.StartNew<Task<TResult>>(delegate

            {

                Thread.CurrentThread.CurrentCulture = culture;

                Thread.CurrentThread.CurrentUICulture = cultureUi;

                return func();

            }).Unwrap<TResult>().ConfigureAwait(await).GetAwaiter().GetResult();

        }