异步或多线程支持一个任务执行完成

贴一个简单的代码

1：多线程

public class Class1
    {
        public Class1()
        {
            Timer timer = new Timer();
            timer.Enabled = true;
            timer.Interval = 500;
            timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
            Console.Read();
        }
        int n = 0;
        void timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            n++;
            System.Threading.Thread t = new System.Threading.Thread(
                new System.Threading.ParameterizedThreadStart(newThread));
            t.Name = n.ToString();
            t.Start(n);
        }
        void newThread(object n)
        {
            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine("n=" + n + " => i=" + i + "");
                System.Threading.Thread.Sleep(1000);
            }
           Console.WriteLine("线程" + System.Threading.Thread.CurrentThread.Name + "结束");
           System.Threading.Thread.CurrentThread.Abort();
           System.Threading.Thread.CurrentThread.Join();
        }
    }

2：委托

 public class Class2
    {
        public Class2()
        {
            Timer timer = new Timer();
            timer.Enabled = true;
            timer.Interval = 500;
            timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
            Console.Read();
        }
        int n = 0;
        void timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            n++;
            Working(n);
        }
        private delegate void DelegateReceiveData(int n);
        private void CallBackMethod(IAsyncResult ar)
        {
            try
            {
                DelegateReceiveData dn = (DelegateReceiveData)ar.AsyncState;
                dn.EndInvoke(ar);
            }
            catch (Exception ex)
            {
               
            }
        }
        private void ReceiveData(int n)
        {
            for (int i = 0; i < 10; i++)
            {
                Console.WriteLine("n=" + n + " => i=" + i + "");
                System.Threading.Thread.Sleep(1000);
            }
        }
        protected void Working(int n)
        {
            DelegateReceiveData dn = new DelegateReceiveData(ReceiveData);
            AsyncCallback acb = new AsyncCallback(CallBackMethod);
            IAsyncResult iar = dn.BeginInvoke(n, acb, dn);
        }
    }

结果：