委托小练习

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private delegate void SetM();
        private delegate void SetZ(int i);
        private void button1_Click(object sender, EventArgs e)
        {
            //Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
            //SetM s = new SetM(test);
            //s.BeginInvoke(null, null);
            //Console.WriteLine("主2" + Thread.CurrentThread.ManagedThreadId);

            //Console.WriteLine("主0" + Thread.CurrentThread.ManagedThreadId);
            //Action action = new Action(() => { test(); });
            //action.BeginInvoke(null, null);
            //Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);

            //Console.WriteLine("主0" + Thread.CurrentThread.ManagedThreadId);
            //Func<int, int, int> func = new Func<int, int, int>(test1);
            ////   func.BeginInvoke(1, 1, null, null);
            //func(1, 1);
            //Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
            ////Console.WriteLine(func(1, 1));



            //等待
            //Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
            //SetM s1 = new SetM(test);
            //var result = s1.BeginInvoke(null, null);
            //while (!result.IsCompleted)
            //{
            //    Thread.Sleep(1000);
            // }
            //Console.WriteLine("主2" + Thread.CurrentThread.ManagedThreadId);


            //Console.WriteLine("主0" + Thread.CurrentThread.ManagedThreadId);
            //SetM s1 = new SetM(test);
            //IAsyncResult ar =s1.BeginInvoke(null, null);
            //Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
            //s1.EndInvoke(ar);
            //Console.WriteLine("主2" + Thread.CurrentThread.ManagedThreadId);


            //Console.WriteLine("主0" + Thread.CurrentThread.ManagedThreadId);
            //Action action = new Action(() => { test(); });
            //IAsyncResult ar2 = action.BeginInvoke(null, null);
            //if (ar2.AsyncWaitHandle.WaitOne())
            //{
            //    Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
            //}
            //Console.WriteLine("主2" + Thread.CurrentThread.ManagedThreadId);


            //回调


            Console.WriteLine("主0" + Thread.CurrentThread.ManagedThreadId);
            Action a = new Action(() => { test(); });
            AsyncCallback callback = o=> { Console.WriteLine("回调" + o.AsyncState); };
            a.BeginInvoke(callback, 2);
            Console.WriteLine("主1" + Thread.CurrentThread.ManagedThreadId);
        }


        private void test()
        {
            for (int i = 0; i < 5; i++)
            {
                Thread.Sleep(1000);
            }

            Console.WriteLine("test" + Thread.CurrentThread.ManagedThreadId);
        }

        private int test1(int a, int b)
        {
            for (int i = 0; i < 5; i++)
            {
                Thread.Sleep(1000);
            }

            Console.WriteLine("test1" + Thread.CurrentThread.ManagedThreadId);
            return 666;
        }
    }
}