1分钟倒数计时器

Question

我试图从1分钟做一个简单的倒数计时器,显示在按钮文本中.当按下按钮时,我只想让它倒数到0,显示"倍数".我一直在阅读我能找到的所有帖子,试图弄清楚如何做到这一点,但不能.有人能告诉我我做错了什么.

这是在visual c#windows phone应用程序中.我希望我的帖子显示正确,这是我第一次在这个网站上提问,我是新手.提前感谢您的任何建议.

void bTime_Click(object sender, RoutedEventArgs e)
    {
        DispatcherTimer timer1 = new DispatcherTimer();
        timer1.Interval = TimeSpan.FromSeconds(60);
        timer1.Tick += new EventHandler(timer_Tick);
        timer1.Start();
    }

    int tik = 60;
    void timer_Tick(object sender, EventArgs e)
    {
        bTime.Content = timer.ToString();
        if (tik > 0)
            Countdown.Text = (timer--).ToString();
        else
            Countdown.Text = "Times Up";
        throw new NotImplementedException();
    }

Answer 1

首先,摆脱throw new NotImplementedException.其次,你需要减少tik.所以像这样:

    DispatcherTimer timer1 = new DispatcherTimer();
    private void button1_Click(object sender, RoutedEventArgs e)
    {
        timer1.Interval = new TimeSpan(0, 0, 0, 1);
        timer1.Tick += new EventHandler(timer1_Tick);
        timer1.Start();
    }

    int tik = 60;
    void timer1_Tick(object sender, EventArgs e)
    {
        Countdown.Text = tik + " Seconds Remaining";
        if (tik > 0)
            tik--;
        else
            Countdown.Text = "Times Up";
    }

我改变了Interval,我每秒钟都在减少.很好,很简单.希望能帮助到你.如果你不明白,请告诉我.