计时器的使用

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// Summary:
//     A timer that is integrated into the System.Windows.Threading.Dispatcher queue
//     which is processed at a specified interval of time and at a specified priority.
DispatcherTimer timer = new DispatcherTimer();
// Summary:
//     Occurs when the timer interval has elapsed.
timer.Tick += (sender, e) => { System.Console.WriteLine("SubmarineX"); };
// Summary:
//     Gets or sets the period of time between timer ticks.
//
// Returns:
//     The period of time between ticks. The default is 00:00:00.
//
// Exceptions:
//   System.ArgumentOutOfRangeException:
//     interval is less than 0 or greater than System.Int32.MaxValue milliseconds.
timer.Interval = new System.TimeSpan(0, 0, 1);
// Summary:
//     Starts the System.Windows.Threading.DispatcherTimer.
timer.Start();

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