任务有返回值例子:
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6 7 8 namespace Demo 9 { 10 class Program 11 { 12 13 static void Main(string[] args) 14 { 15 16 System.Threading.Tasks.Task<string> task = Task.Factory.StartNew<string>(Test); 17 18 Console.WriteLine("Result:" + task.Result); 19 Console.WriteLine("Status:" + task.Status); 20 Console.WriteLine("IsFaulted:" + task.IsFaulted); 21 Console.WriteLine("IsCompleted:" + task.IsCompleted); 22 Console.WriteLine("IsCanceled:" + task.IsCanceled); 23 Console.ReadKey(); 24 } 25 26 public static string Test() 27 { 28 Console.WriteLine("调用test方法:"+"ddddfdfd"); 29 return "调用异步方法返回的结果"; 30 } 31 32 } 33 }
下图是上面的代码的运行结果:
没有返回值的任务:
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6 7 8 namespace Demo 9 { 10 class Program 11 { 12 13 static void Main(string[] args) 14 { 15 16 System.Threading.Tasks.Task task = Task.Factory.StartNew(Test); 17 18 Console.WriteLine("Status:" + task.Status); 19 Console.WriteLine("IsFaulted:" + task.IsFaulted); 20 Console.WriteLine("IsCompleted:" + task.IsCompleted); 21 Console.WriteLine("IsCanceled:" + task.IsCanceled); 22 Console.ReadKey(); 23 } 24 25 public static void Test() 26 { 27 Console.WriteLine("调用test方法:"+"ddddfdfd"); 28 } 29 30 } 31 }
下面是上述代码运行的结果: