版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/dreamdonghui/article/details/85261398
1 简介
实现定时器事件,每隔一个时间后触发事件。
2.原理
2.1 命名空间
using System.Timers;
2.2 声明定时器
private Timer aTimer;
2.3 实例化定时器并设置属性
// Create a timer and set a two second interval.
aTimer = new System.Timers.Timer();
aTimer.Interval = 2000;
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += OnTimedEvent;
// Have the timer fire repeated events (true is the default)
aTimer.AutoReset = true;
// Start the timer
aTimer.Enabled = true;
2.4 事件函数
时间函数的函数名要与注册事件语句中的函数名要一致。
private static void OnTimedEvent(Object source, System.Timers.ElapsedEventArgs e)
{
Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
}
3.代码示例
using System;
using System.Timers;
public class Example
{
private static Timer aTimer;
public static void Main()
{
// Create a timer and set a two second interval.
aTimer = new System.Timers.Timer();
aTimer.Interval = 2000;
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += OnTimedEvent;
// Have the timer fire repeated events (true is the default)
aTimer.AutoReset = true;
// Start the timer
aTimer.Enabled = true;
Console.WriteLine("Press the Enter key to exit the program at any time... ");
Console.ReadLine();
}
private static void OnTimedEvent(Object source, System.Timers.ElapsedEventArgs e)
{
Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
}
}
// The example displays output like the following:
// Press the Enter key to exit the program at any time...
// The Elapsed event was raised at 5/20/2015 8:48:58 PM
// The Elapsed event was raised at 5/20/2015 8:49:00 PM
// The Elapsed event was raised at 5/20/2015 8:49:02 PM
// The Elapsed event was raised at 5/20/2015 8:49:04 PM
// The Elapsed event was raised at 5/20/2015 8:49:06 PM