using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading;
    using System.Threading.Tasks;
 namespace ThreadTest
{
    class Program
    {
        private static string GuidStr = string.Empty;
        private static Dictionary
    
      Datas = new Dictionary
     
      ();
        static void Main(string[] args)
        {
            List
      
        threads = new List
       
        ();
            for (int i = 0; i < 10000; i++)
            {
                GuidStr = Guid.NewGuid().ToString();
                var dataCache = new DataCache { Name = GuidStr, Value = "123456789" };
                if (Datas.TryGetValue(GuidStr, out var tempDataCache))
                {
                    Datas[GuidStr] = dataCache;
                }
                else
                {
                    Datas.Add(GuidStr, dataCache);
                }
            }
            for (int i = 0; i < 1000; i++)
            {
                var thread = new Thread(Check);
                thread.Start();
                threads.Add(thread);
            }
            for (int i = 0; i < 10; i++)
            {
                var thread = new Thread(Amend);
                thread.Start();
                threads.Add(thread);
            }
            Thread.Sleep(10000);
            foreach (var thread in threads)
            {
                try
                {
                    thread.Abort();
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                }
            }
            Console.WriteLine("Exit");
        }
        private static void Amend()
        {
            while (true)
            {
                var dataCache = Get(GuidStr);
                if (dataCache != null)
                {
                    dataCache.Value = "123456789";
                    Thread.Sleep(1000);
                    if (dataCache != null)
                    {
                        dataCache.Value = "987654321";
                        Thread.Sleep(1000);
                        if (dataCache != null)
                        {
                            dataCache.IsDelete = true;
                            Thread.Sleep(1000);
                            if (dataCache != null)
                            {
                                dataCache.IsDelete = false;
                            }
                        }
                    }
                }
            }
        }
        private static void Check()
        {
            while (true)
            {
                var dataCache = Get(GuidStr);
                if (dataCache != null)
                {
                    if (dataCache.IsDelete)
                    {
                        Console.WriteLine("IsDelete == True");
                    }
                    else
                    {
                        if (dataCache.Value == "123456789")
                        {
                            Console.WriteLine("IsDelete == False, Value == 123456789");
                        }
                        else if (dataCache.Value == "987654321")
                        {
                            Console.WriteLine("IsDelete == False, Value == 987654321");
                        }
                        else
                        {
                            Console.WriteLine("Error");
                        }
                    }
                }
                else
                {
                    Console.WriteLine("dataCache == null");
                }
                Thread.Sleep(10);
            }
        }
        private static DataCache Get(string guidStr)
        {
            DataCache dataCache;
            if (Datas.TryGetValue(guidStr, out dataCache))
            {
                return dataCache;
            }
            else
            {
                return null;
            }
        }
    }
    public class DataCache
    {
        public string Name { get; set; }
        public string Value { get; set; }
        public bool IsDelete { get; set; }
    }
}