public static void ShowTime(Object sender, Clock.ClockEventArgs e)
{
Clock clock = (Clock)sender;
Console.WriteLine($"现在是{e.clockTime}点钟。");
Console.WriteLine();
}
public void MakeAlert(Object sender, Clock.ClockEventArgs e)
{
Clock clock = (Clock)sender;
Console.WriteLine($"嘀嘀嘀，已经到{e.clockTime} 点了！");
Console.WriteLine();
}