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  1  public class DeepSeekHelper
  2  {
  3      private static readonly HttpClient client = new HttpClient();
  4      private const string ApiEndpoint = "https://api.deepseek.com/v1/chat/completions";
  5      private static readonly string apiKey = "你的apikey";
  6      public static async Task<string> CallDeepSeekAPI(string userQuestion)
  7      {
  8          ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
  9          try
 10          {
 11              // 設置請求頭
 12              client.DefaultRequestHeaders.Clear();
 13              client.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");
 14              client.DefaultRequestHeaders.Add("Accept", "application/json");
 15 
 16              // 構建請求體
 17              var requestBody = new
 18              {
 19                  model = "deepseek-reasoner", // 根據實際模型調整
 20                  messages = new[]
 21                  {
 22                  new
 23                  {
 24                      role = "user",
 25                      content = userQuestion
 26                  }
 27              },
 28                  temperature = 0.7
 29              };
 30 
 31              // 序列化請求體
 32              //var jsonContent = JsonSerializer.Serialize(requestBody);
 33              var jsonContent = JsonConvert.SerializeObject(requestBody);
 34              var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");
 35 
 36              // 發送請求
 37              var response = await client.PostAsync(ApiEndpoint, content);
 38 
 39              // 處理響應
 40              if (!response.IsSuccessStatusCode)
 41              {
 42                  throw new Exception($"API請求失敗: {response.StatusCode}");
 43              }
 44 
 45              var responseContent = await response.Content.ReadAsStringAsync();
 46              var resultModel = JsonConvert.DeserializeObject<DeepSeekResponse>(responseContent);
 47              if (resultModel != null && resultModel.Choices.Count > 0)
 48                  return resultModel.Choices[0].Message.Content;
 49              return responseContent;
 50          }
 51          catch (Exception ex)
 52          {
 53              // 處理異常
 54              return $"調用API時發生錯誤: {ex.Message}";
 55          }
 56      }
 57  }
 58 
 59 
 60 
 61  public class DeepSeekResponse
 62  {
 63      public string Id { get; set; }
 64      public string Object { get; set; }
 65      public long Created { get; set; }
 66      public string Model { get; set; }
 67      public List<Choice> Choices { get; set; }
 68      public Usage Usage { get; set; }
 69      public string SystemFingerprint { get; set; }
 70 
 71      // 重寫ToString方法以便更好地顯示對象信息
 72      public override string ToString()
 73      {
 74          return $"DeepSeekResponse(Id={Id}, Object={Object}, Created={Created}, Model={Model}, Choices={string.Join(", ", Choices)}, Usage={Usage}, SystemFingerprint={SystemFingerprint})";
 75      }
 76  }
 77 
 78  public class Choice
 79  {
 80      public int Index { get; set; }
 81      public Message Message { get; set; }
 82      // 其他Choice相關的屬性...
 83 
 84      // 重寫ToString方法以便更好地顯示Choice信息（這里僅展示Index和Message作為示例）
 85      public override string ToString()
 86      {
 87          return $"Choice(Index={Index}, Message={Message})";
 88      }
 89  }
 90 
 91  public class Message
 92  {
 93      public string Role { get; set; }
 94      public string Content { get; set; }
 95      // 其他Message相關的屬性...
 96  }
 97 
 98  public class Usage
 99  {
100      public int PromptTokens { get; set; }
101      public int CompletionTokens { get; set; }
102      public int TotalTokens { get; set; }
103      // 其他Usage相關的屬性，包括嵌套的字典等，可以根據需要添加
104  }

   private async void SendButton_Click(object sender, RoutedEventArgs e)
   {
       string requestText = RequestTextBox.Text;
       if (!string.IsNullOrWhiteSpace(requestText))
       {
           try
           {
            
               string responseData = await DeepSeekHelper.CallDeepSeekAPI(requestText); // await new DeepSeekApi().CallDeepSeekAPI(chatRequest);
               ResponseTextBox.Text = responseData;
           }
           catch (Exception ex)
           {
               ResponseTextBox.Text = $"Error: {ex.Message}";
           }
       }
       else
       {
           MessageBox.Show("Please enter a request.");
       }
   }