C# 中Stopwatch和timer的实现示例

using System;
using System.Diagnostics;

class Program
{
    static void Main()
    {
        Stopwatch stopwatch = new Stopwatch();
        stopwatch.Start();

        // 执行一些操作
        for (int i = 0; i < 1000000; i++)
        {
            // 模拟工作负载
        }

        stopwatch.Stop();
        Console.WriteLine("Elapsed time: " + stopwatch.Elapsed);
    }
}

using System;
using System.Timers;

class Program
{
    static void Main()
    {
        Timer timer = new Timer(1000); // 设置定时器间隔为1000毫秒
        timer.Elapsed += (sender, e) => 
        {
            Console.WriteLine("Timer ticked at " + DateTime.Now);
            // 执行定时任务
        };
        timer.AutoReset = true; // 设置定时器自动重置
        timer.Enabled = true; // 启动定时器

        Console.WriteLine("Press any key to exit...");
        Console.ReadKey();
        timer.Dispose(); // 清理资源
    }
}

using System;
using System.Windows.Forms;

class Program
{
    static void Main()
    {
        Timer timer = new Timer();
        timer.Interval = 1000; // 设置定时器间隔为1000毫秒
        timer.Tick += (sender, e) => 
        {
            Console.WriteLine("Timer ticked at " + DateTime.Now);
            // 执行定时任务
        };
        timer.Start(); // 启动定时器

        Console.WriteLine("Press any key to exit...");
        Console.ReadKey();
        timer.Stop(); // 停止定时器
    }
}