传递变量并使用它们 (C#)

我想将变量（Swt，Srt）从设置表单传递到 Main，并使用它们。问题是当程序启动时，WorkDelay 和 RecreationDelay 被创建为空，以后不会改变。

public static int Swt, Srt;
public TimeSpan WorkDelay = TimeSpan.FromMinutes(Swt); //Work time in minutes
public TimeSpan WorkDelay = TimeSpan.FromMinutes(Swt); //Work time in minutes

主要形式

public partial class Main : Form
{
    private DateTime _globalTimeDate;

    public static int Swt, Srt;

    private DateTime _workExpiry;
    public TimeSpan WorkDelay = TimeSpan.FromMinutes(Swt); //Work time in minutes

    private DateTime _recreationExpiry;
    public TimeSpan RecreationDelay = TimeSpan.FromMinutes(Srt); // Recreation time in minutes

    public Main()
    {
        InitializeComponent();

        stop.Enabled = false;

        global.Text = @"Stoped";
        work.Text = @"Stoped";
        recreation.Text = @"Stoped";
    }

    private void globalTimer_Tick(object sender, EventArgs e)
    {
        long tick = DateTime.Now.Ticks - _globalTimeDate.Ticks;
        DateTime stopWatch = new DateTime();
        stopWatch = stopWatch.AddTicks(tick);
        global.Text = $@"{stopWatch:HH:mm:ss}";
    }

    private void workTimer_Tick(object sender, EventArgs e)
    {
        TimeSpan remaining = _workExpiry - DateTime.Now;
        work.Text = remaining.ToString("hh\\:mm\\:ss");

        if (work.Text == @"00:00:00")
        {
            workTimer.Stop();
            work.Text = @"Stoped, start recreation";

            _recreationExpiry = DateTime.Now.Add(RecreationDelay);
            recreationTimer.Start();
        }
    }

    private void recreationTimer_Tick(object sender, EventArgs e)
    {
        TimeSpan remaining = _recreationExpiry - DateTime.Now;
        recreation.Text = remaining.ToString("hh\\:mm\\:ss");

        if (recreation.Text == @"00:00:00")
        {
            recreationTimer.Stop();
            recreation.Text = @"Stoped, strart work";

            _workExpiry = DateTime.Now.Add(WorkDelay);
            workTimer.Start();
        }
    }

    private void start_Click(object sender, EventArgs e)
    {
        _globalTimeDate = DateTime.Now;
        _workExpiry = DateTime.Now.Add(WorkDelay);

        globalTimer.Start();
        workTimer.Start();

        start.Enabled = false;
        stop.Enabled = true;
    }

    private void stop_Click(object sender, EventArgs e)
    {
        globalTimer.Stop();
        workTimer.Stop();
        recreationTimer.Stop();

        work.Text = @"Stoped";
        recreation.Text = @"Stoped";

        stop.Enabled = false;
        start.Enabled = true;
    }

    private void exitToolStripMenuItem_Click(object sender, EventArgs e)
    {
        globalTimer.Stop();
        workTimer.Stop();
        recreationTimer.Stop();

        Application.Exit();
    }

    private void settingsToolStripMenuItem_Click(object sender, EventArgs e)
    {
        Settings settings = new Settings();
        settings.Show();
    }
}
}

设置表格

public partial class Settings : Form
{

    public Settings()
    {
        InitializeComponent();
    }

    private void buttonSet_Click(object sender, EventArgs e)
    {
        try
        {
            Main.Swt = (int) Convert.ToDouble(textBoxW.Text.Replace(',', '.'));
            Main.Srt = (int) Convert.ToDouble(textBoxR.Text.Replace(',', '.'));
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }

        Close();
    }

    private void buttonReset_Click(object sender, EventArgs e)
    {
        Main.Swt = 0;
        Main.Srt = 0;
    }
}
}