Task t1=new Task(()=>{});
t1.Start();//啟動Task
t1.Wait();//若調用Wait函數，則會等待t1運行結束才能往下執行，若不調用wait函數，則t1會在后臺運行直至結束；

Task  t2=Task.Factory.StartNew(()=>{});
t2.Wait();//不需要調用Start函數；若調用Wait函數，則會等待t2運行結束才能往下執行，若不調用wait函數，則t2會在后臺運行直至結束；

  Task t1 = new Task(p =>
              {
var model=(dynamic)p;
Console.WriteLine("{0}",model.name);
              },new { name=1});



Task.Factory.StartNew(p=>{},new {name=11}）；

Task t=Task.Factory.StartNew<string>(()=>{return "demo";"});
Console.WritLine(t.Result);