/// <summary>
 /// 简单的task创建方式演示
 /// </summary>
 private static void TaskCreatFun()
 {
     // 其一、通过传统的 new 方式来实例化一个task对象，这种方式需要手动通过start来启动
     Task newTask = new Task(() =>
     {
         Thread.Sleep(1000);
         Console.WriteLine($"Hello Engineer, 我是 new 的一个task,线程ID：Thread.CurrentThread.ManagedThreadId}");
     });

     // 启动 tsak
     newTask.Start();

     // 其二、通过工厂 factory 来生成一个task对象，并自启动
     Task factoryTask = Task.Factory.StartNew(() =>
     {
         Thread.Sleep(1000);
         Console.WriteLine($"Hello Engineer, 我是 factory 生产 的一个task,线程ID：Thread.CurrentThread.ManagedThreadId}");
     });

     // 其三、通过 Task.Run(Action action) 来创建一个自启动task
     Task runTask = Task.Run(() =>
     {
         Thread.Sleep(1000);
         Console.WriteLine($"Hello Engineer, 我是 Task.Run 创建一个自启动task,线程ID：Thread.CurrentThread.ManagedThreadId}");
     });
     runTask.RunSynchronously();

     Console.WriteLine($"Hello Engineer, 我是主线程啦！线程ID{Thread.CurrentThread.ManagedThreadId}");
 }

 taskList.Add(taskFactory.StartNew(() => this.DoSomethingLong("btnTask_Click_002")));
 taskList.Add(taskFactory.StartNew(() => this.DoSomethingLong("btnTask_Click_001")));
 //回调ContinueWhenAny没有那么精准，不一定是在某个线程完成之后发生
 taskList.Add(taskFactory.ContinueWhenAny(taskList.ToArray(), t =>      Console.WriteLine($"ContinueWhenAny {Thread.CurrentThread.ManagedThreadId.ToString("00")}")));

taskList.Add(taskFactory.ContinueWhenAll(taskList.ToArray(), tList => Console.WriteLine($"这里是ContinueWhenAll {Thread.CurrentThread.ManagedThreadId.ToString("00")}")));

Task task2 = taskFactory.StartNew(t => this.DoSomethingLong("btnTask_Click_005"), "煎饼果子").ContinueWith(t => Console.WriteLine($"这里是{t.AsyncState}的回调"));

Task.WaitAny(taskList.ToArray());//卡界面

Task.WaitAll(taskList.ToArray());//卡界面

Task<int> intTask = taskFactory.StartNew(() => 123);
int iResult = intTask.Result;

Task<string> intTask = taskFactory.StartNew(() => "123");
int iResult = intTask.Result;