C#的定时器

最新推荐文章于 2025-05-25 16:30:26 发布

dijkstar

最新推荐文章于 2025-05-25 16:30:26 发布

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CC 4.0 BY-SA版权

文章标签： c# timer compiler class hook object

本文链接：https://blog.youkuaiyun.com/dijkstar/article/details/4662373

本文展示了一个使用C#中的System.Timers.Timer类创建简单定时器应用程序的例子。该程序每两秒输出一次“Hello World!”，并通过GC.KeepAlive方法确保定时器在主方法结束前保持活动状态。

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来自于msdn：

using System;
using System.Timers;

public class Timer1
{
    public static void Main()
    {
        // Normally, the timer is declared at the class level, so
        // that it doesn't go out of scope when the method ends.
        // In this example, the timer is needed only while Main
        // is executing. However, KeepAlive must be used at the
        // end of Main, to prevent the JIT compiler from allowing
        // aggressive garbage collection to occur before Main
        // ends.
        System.Timers.Timer aTimer = new System.Timers.Timer();

// Hook up the Elapsed event for the timer.
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);

        // Set the Interval to 2 seconds (2000 milliseconds).
        aTimer.Interval = 2000;
        aTimer.Enabled = true;

        Console.WriteLine("Press the Enter key to exit the program.");
        Console.ReadLine();

        // Keep the timer alive until the end of Main.
        GC.KeepAlive(aTimer);
    }

    // Specify what you want to happen when the Elapsed event is
    // raised.
    private static void OnTimedEvent(object source, ElapsedEventArgs e)
    {
        Console.WriteLine("Hello World!");
    }
}