C#中高精度计时器Stopwatch的用法详解

        //按键单击
        private void button_watch_Click(object sender, EventArgs e)
        {            
            Console.WriteLine("action_spent_time:" + watch(action));
        }
        
        //模拟用户函数耗时
        private void action()
        {
            Thread.Sleep(1000);
        }
        
        //开始和停止定时器
        public static double watch(Action action)
        {
            //实例化
            Stopwatch stopWatch = new Stopwatch();
            //启动定时器
            stopWatch.Start();
            //用户任务
            action();
            //停止定时器
            stopWatch.Stop();
            //返回计时器时间
            return stopWatch.Elapsed.TotalMilliseconds;
        }

    //按键单击
    private void button_watch_Click(object sender, EventArgs e)
    {
        watchResetAndRestart(action);
    }
    
    //模拟用户函数耗时
    private void action()
    {
        Thread.Sleep(1000);
    }

    //复位和重启计时器时器
    public void watchResetAndRestart(Action action)
    {
        //实例化
        Stopwatch stopWatch = new Stopwatch();
        //启动定时器
        stopWatch.Start();
        //用户任务
        action();
        Console.WriteLine("action:"+ stopWatch.Elapsed.TotalMilliseconds);
        //复位定时器
        stopWatch.Reset();
        Console.WriteLine("action reset:" + stopWatch.Elapsed.TotalMilliseconds);
        //重启定时器
        stopWatch.Restart();
        //用户任务
        action();
        Console.WriteLine("action Restart:" + stopWatch.Elapsed.TotalMilliseconds);
        //复位定时器
        stopWatch.Reset();
    }
}