private void TaskListCopy2(List <int> list2)
        {
            var pageList = new List <int>();
            var x        = new ConcurrentBag <int>();
            var taskr    = new TaskOptimizeByPaging(20);
            var taskList = new List <Task>();

            for (int i = 0; i < 2; i++)
            {
                var task = Task.Run(() =>
                {
                    var newTs = taskr.GetListByPagination(list2);
                    while (newTs.Count() > 0)
                    {
                        foreach (var item in newTs)
                        {
                        }
                        newTs = taskr.GetListByPagination(list2);
                    }
                });
                taskList.Add(task);
            }
            Task.WaitAll(taskList.ToArray());

            Console.WriteLine(@$ "list原集合中个数:{list2.Count()}
TaskListCopy个数: {pageList.Distinct().Count()} ");
            //Console.WriteLine(@$"hs中个数:{hs.Count}");
            Console.WriteLine(@$ "x中个数:{x.Count()}");
        }
 private void ListCopy(List <Student> list, List <int> list2)
 {
     TaskOptimizeByPaging.StopWatchAction(() =>
     {
         var copylist  = new List <Student>();
         var copylist2 = new List <int>();
         foreach (var item in list)
         {
             #region sql操作
             copylist.Add(item);
             Thread.Sleep(1);
             foreach (var item2 in list2)
             {
                 copylist2.Add(item2);
                 Thread.Sleep(1);
             }
             #endregion
         }
         Console.WriteLine($"原集合中个数:{list.Count} ,ListCopyAfter个数: {copylist.Count()} ");
     });
 }
        private void TaskListCopy(List <Student> list, List <int> list2)
        {
            TaskOptimizeByPaging.StopWatchAction(() =>
            {
                var pageList = new List <int>();
                var taskr    = new TaskOptimizeByPaging(20);
                var hs       = new Hashtable();
                var token    = new CancellationTokenSource();
                taskr.TaskRunWaitByPaging(list2,
                                          s =>
                {
                    hs.Add(s, "");
                    pageList.Add(s);
                    // Console.WriteLine(s);
                }, token, null, 2
                                          );
                Console.WriteLine(@$ "list原集合中个数:{list2.Count()}
TaskListCopy个数: {pageList.Distinct().Count()} ");
                //TaskListCopy个数: {pageList2.Distinct().Count()} ");
                Console.WriteLine(@$ "hs2中个数:{hs.Count}");
            });
        }