C#异步回调函数

标签：c# 异步回调函数实例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ComprehensiveTest.com
{
    public class AsyCallEx112
    {
        // 定义一个执行加法的委托
        public delegate int sum(int a, int b);
        public class number
        {
            public int m = 4;
            public int numberAdd(int a, int b)
            {
                int c = a + b;
                return c;
            }
            //定义一个与。net framework 定义的asyncCallback委托相对应的回调函数
            public void CallbackMothed2(IAsyncResult ar2)
            {
                sum s = (sum)ar2.AsyncState;
                int number = s.EndInvoke(ar2);
                m = number;
                Console.WriteLine("得到的M值：{0}", m);
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ComprehensiveTest.com
{
    public class AsyCallEx113
    {
        //定义一个委托
        public delegate void AsyncEventHanlder();
        public class Class1
        {
            public void Event1()
            {
                Console.WriteLine("Event1 start");
                System.Threading.Thread.Sleep(2000);
                Console.WriteLine("Event1 end");
            }
            public void Event2()
            {
                Console.WriteLine("Event2 start");
                int i = 1;
                while (i < 100)
                {
                    i = i + 1;
                    Console.WriteLine("Event2 " + i.ToString());
                }
                Console.WriteLine("Event2 end");
            }
            public void CallbackMethod( IAsyncResult ar )
            {
                ((AsyncEventHanlder)ar.AsyncState).EndInvoke(ar);
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using ComprehensiveTest.com;

namespace ComprehensiveTest
{
    class Program
    {
        static void Main(string[] args)
        {
            // 112
            //AsyCallEx112.number num = new AsyCallEx112.number();
            //AsyCallEx112.sum numberadd= new AsyCallEx112.sum(num.numberAdd);
            //AsyncCallback numberBack = new AsyncCallback(num.CallbackMothed2);
            //numberadd.BeginInvoke(21, 12, numberBack, numberadd);
            //Console.WriteLine("得到的结果：");
            //Console.WriteLine(num.m);

            // 113
            long start = 0;
            long end = 0;
            AsyCallEx113.Class1 c = new AsyCallEx113.Class1();
            Console.WriteLine("ready");
            start = DateTime.Now.Ticks;

            AsyCallEx113.AsyncEventHanlder asy = new AsyCallEx113.AsyncEventHanlder(c.Event1);
            //IAsyncResult ia = asy.BeginInvoke(null, null);

            IAsyncResult ia  = asy.BeginInvoke(new AsyncCallback(c.CallbackMethod), asy);
            ia.AsyncWaitHandle.WaitOne();
            c.Event2();
           
            end = DateTime.Now.Ticks;
            Console.WriteLine("时间刻度差= " + Convert.ToString(end - start));
            Console.ReadLine();
        }
    }
}

本文出自 “Better_Power_Wisdom” 博客，请务必保留此出处http://aonaufly.blog.51cto.com/3554853/1698947

C#异步回调函数

标签：c# 异步回调函数实例

原文地址：http://aonaufly.blog.51cto.com/3554853/1698947