public interface IHttpClientUtility
{
 string HttpClientPost(string url, object datajson);
}

public class HttpClientUtility : IHttpClientUtility
 {
 

 public HttpClientUtility()
 {
 
 }
 public string HttpClientPost(string url, object datajson)
 {
 using (HttpClient httpClient = new HttpClient()) //http對(duì)象
 {
 httpClient.DefaultRequestHeaders.Accept.Clear();
 httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
 httpClient.Timeout = new TimeSpan(0, 0, 5);
 //轉(zhuǎn)為鏈接需要的格式
 HttpContent httpContent = new JsonContent(datajson);
 //請(qǐng)求
 HttpResponseMessage response = httpClient.PostAsync(url, httpContent).Result;
 if (response.IsSuccessStatusCode)
 {
  Task<string> t = response.Content.ReadAsStringAsync();
  return t.Result;
 }
 throw new Exception("調(diào)用失敗");
 }
     
 }
 }

public class JsonContent : StringContent
 {
 public JsonContent(object value)
 : base(JsonConvert.SerializeObject(value), Encoding.UTF8,
 "application/json")
 {
 }

 public JsonContent(object value, string mediaType)
 : base(JsonConvert.SerializeObject(value), Encoding.UTF8, mediaType)
 {
 }
 }

public class TuShareUtility 
 {
 private IHttpClientUtility _httpClientUtility;
 private string _url = "http://api.waditu.com/";
 
 public TuShareUtility(IHttpClientUtility httpClientUtility)
 {
 _httpClientUtility = httpClientUtility;
 }

 /// <summary>
 /// 調(diào)用TuShare API
 /// </summary>
 /// <param name="apiName"></param>
 /// <param name="parmaMap"></param>
 /// <param name="fields"></param>
 /// <returns></returns>
 public DataTable GetData(string apiName,Dictionary<string,string> parmaMap,params string[] fields)
 {
 var tuShareParamObj=new TuShareParamObj(){ ApiName = apiName ,Params = parmaMap,Fields = string.Join(",",fields)};
 //做Http調(diào)用
 var result=_httpClientUtility.HttpClientPost(_url, tuShareParamObj);
 //將返回結(jié)果序列化成對(duì)象
 var desResult=JsonConvert.DeserializeObject<TuShareResult>(result);
 //如果調(diào)用失敗，拋出異常
 if(!string.IsNullOrEmpty(desResult.Msg))
 throw new Exception(desResult.Msg);
 //返回結(jié)果分成兩部分，一部分是列頭信息，另一部分是數(shù)據(jù)本身，用這兩部分?jǐn)?shù)據(jù)可以構(gòu)建DataTable
 DataTable dt = new DataTable();
 foreach (var dataField in desResult.Data.Fields)
 {
 dt.Columns.Add(dataField);
 }

 foreach (var dataItemRow in desResult.Data.Items)
 {
 var newdr=dt.NewRow();
 for (int i=0;i< dataItemRow.Length;i++)
 {
  newdr[i] = dataItemRow[i];
 }

 dt.Rows.Add(newdr);
 }
 return dt;
 }

 private class TuShareParamObj
 {
 [JsonProperty("api_name")]
 public string ApiName { get; set; }

 [JsonProperty("token")]
 public string Token { get; } = "****************";//你的Token

 [JsonProperty("params")]
 public Dictionary<string, string> Params { get; set; }

 [JsonProperty("fields")]
 public string Fields { get; set; }
 }

 private class TuShareData
 {
 [JsonProperty("fields")]
 public string[] Fields { get; set; }

 [JsonProperty("items")]
 public string[][] Items { get; set; }
 }

 private class TuShareResult
 {
 [JsonProperty("code")]
 public string Code { get; set; }

 [JsonProperty("msg")]
 public string Msg { get; set; }

 [JsonProperty("data")]
 public TuShareData Data { get; set; }
 }
 }

var tuShareUtility=new TuShareUtility();
Dictionary<string, string> p = new Dictionary<string, string>();
p["trade_date"] = "20200624";
var table = tuShareUtility.GetData("daily", p, "");