C # multithreading -- Timer

The timer class can be used to trigger specified tasks at a specified time.

Timer timer = new timer (timerdelegate, paramobject, 1000,100 0) where,

1. The first parameter is the method to be executed.

2. The second parameter is the object information used by the callback method;

3. The third parameter is the time interval for delayed start. "0" indicates immediate start;

4. The fourth parameter is the interval of timer.

using System;using System.Collections.Generic;using System.Text;using System.Threading;using System.Collections;namespace Demo{    class ParamObject    {        public int iCounter = 0;        public Timer aTimer;    }    class Program    {       public static void Main(string[] args)       {           ParamObject aParamObject = new ParamObject();           Timer aTimer = new Timer(new TimerCallback(CheckStatus), aParamObject, 1000, 1000);           aParamObject.aTimer = aTimer;           while (aParamObject.aTimer != null)           {               Thread.Sleep(0);           }           Console.ReadLine();       }        static void CheckStatus(object paramObject)        {            ParamObject aParamObject = (ParamObject)paramObject;            aParamObject.iCounter++;            Console.WriteLine("{0} status: {1}", DateTime.Now.TimeOfDay, aParamObject.iCounter);            if (aParamObject.iCounter == 5)            {                // Wait 1000 ms and go on to do the timer event                aParamObject.aTimer.Change(1000, 2000);                Console.WriteLine("Timer interval changed!");            }            if (aParamObject.iCounter == 10)            {                Console.WriteLine("Dispose timer");                aParamObject.aTimer.Dispose();                aParamObject.aTimer = null;            }        }    }}