C# json remove the quotes, remove the transfer, remove the simple processing of the carriage return symbol

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;

namespace cagy_okex
{
    public class WebHelper
    {
        public string GetUrlJson(string url)
        {
            try
            {
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "get";
                request.Headers["x-auth-token"] = "123459"; //添加头
                request.ContentType = "application/json;charset=UTF-8";
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                string json = GetResponseString(response);
                return json;
            }
            catch (Exception e)
            {
                Console.Write("WebHelper:" + e.Message);
                return "";
            }
        }
        public string GetResponseString(HttpWebResponse response)
        {
            string json = null;
            using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding("UTF-8")))
            {
                json = reader.ReadToEnd();
            }
            return json;
        }

        public string GetJsonFile(string path)
        {
            StreamReader sr = new StreamReader(path);
            string a = sr.ReadToEnd();
            sr.Close();
            return a;

        }
    }
}

        public void Start()
        {

            while (true)
            {
                try
                {
                    //获取JSON串GetJsonFile
                    WebHelper wh = new WebHelper();
                    string json = wh.GetUrlJson("http://www.okexcn.com/api/swap/v3/instruments/BTC-USDT-SWAP/candles?start=2021-01-15T02:31:00.000Z&end=2021-01-25T02:55:00.000Z&granularity=3600");
                    //if (json.Contains("数据不存在")) continue;
                    Console.WriteLine(json);

                    GetToJsonList(json);

                    //将JSON串处理
                    Thread.Sleep(200);//500毫秒获取一次

                }
                catch (Exception ex)
                {
                    Console.WriteLine("有错:" + ex.Message);
                    Thread.Sleep(1000);
                    continue;
                }
            }
        }
        public void GetToJsonList(string json)
        {
            JArray jsonArr = (JArray)JsonConvert.DeserializeObject(json);
            for (int i = 0; i < jsonArr.Count; i++)
            {
                DataItem di = new DataItem();
                var it = jsonArr[i].ToString().Replace("[", "").Replace("]", "").Replace("\r\n", "").Replace("\\","").Replace(" ","").Replace(@"""","'");
                string sql = "insert into bh(tm,kai,gao,di,shou,vm,vmb) values(" + it + ");";
                Console.WriteLine(sql);
               
            }
        }