using System;

using System.Collections.Generic;

using Newtonsoft.Json;

public class Program

{

    public static void Main()

    {

        var json = "[{\"1_sell_count\":\"1\",\"2_sell_count\":\"2\",\"3_sell_count\":\"2\"}]";

        var obj = JsonConvert.DeserializeObject<List<myclass>>(json);

        foreach (var o in obj)

        {

            Console.WriteLine(o.First_sell_count + " " + o.Second_sell_count + " " + o.Third_sell_count);

        }

        Console.WriteLine("Hello World");

    }

}

​

public class myclass

    {

        [JsonProperty("1_sell_count")]

        public string First_sell_count{ get; set; }  

        [   JsonProperty("2_sell_count")]

        public string Second_sell_count{ get; set; }   

        [JsonProperty("3_sell_count")]

        public string Third_sell_count{ get; set; }   

    }