用C# 通过HTTP调取网站API数据

参考调用接口教程网址：
https://tushare.pro/document/1?doc_id=130

要求：使用该网址中给出的例子，用C#获取数据，给出实现demo

控制台程序。提取出json数据

using System;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)

        {
            WebClient http = new WebClient();
            string url,postdata, Responsetext;
            url ="http://api.tushare.pro/";
        postdata = @"{""api_name"": ""stock_basic"", ""token"": ""a8eac410fa91c8b222d95a7ee8347338bbfc1566a5f314d963a9ef3a"", ""params"": {""list_stauts"":""L""}, ""fields"": ""ts_code,name,area,industry,list_date""}";
        http.Headers.Set(HttpRequestHeader.ContentType, "application/x-www-form-urlencoded");
        http.Encoding = Encoding.UTF8;
        Responsetext = Regex.Unescape(http.UploadString(url, postdata));
        Console.Write(Responsetext);
        Console.ReadKey();
        }
    }
}