C#中的Timer和DispatcherTimer使用实例

class Program {
        static System.Timers.Timer Timer1 = new System.Timers.Timer();
        static void Main() {
            Timer1.Interval = 1000;
            Timer1.Elapsed += new ElapsedEventHandler(PeriodicTaskHandler);           
            Timer1.Start();
            Console.ReadLine();
        }

        static void PeriodicTaskHandler(object sender, ElapsedEventArgs e) {
        string str =Thread.CurrentThread.ManagedThreadId.ToString()+"##" +"Timer1" +"##" + e.SignalTime.ToLongTimeString();
            Console.WriteLine(str);
        }
    }

private void Button_Click(object sender, RoutedEventArgs e) {
            Timer timer = new Timer();
            timer.Interval = 1000;
            timer.Start();
            timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);

        }

        void timer_Elapsed(object sender, ElapsedEventArgs e) {
            i++;
            this.Dispatcher.Invoke(new Action(() => {
                test.Content = i.ToString();
            }));
        }

        private int i = 0;

private void Button_Click(object sender, RoutedEventArgs e) {
            timer.Interval = TimeSpan.FromMilliseconds(1000);
            timer.Tick += new EventHandler(timer_Tick);
            timer.Start();
        }

        void timer_Tick(object sender, EventArgs e) {
            i++;
            Test.Content = i.ToString();
        }

        private int i = 0;
        private DispatcherTimer timer = new DispatcherTimer();