Question

我正在尝试制作一个骰子游戏，但是我的骰子变量存在问题，并且跟踪当前一轮的得分。

基本上，有四个骰子，圆形分数是加在一起的骰子的总数（每轮你有一定数量的重卷）。

但是当我尝试使用游戏时，圆形分数只显示一个骰子的数字，无论哪一个最近滚动（点击）。

这是我的代码：

namespace DiceGame
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    int die1;
    int die2;
    int die3;
    int die4;
    int rollsRemaining = 6;
    int scoreRound;
    int scoreTotal;
    int numberRound;
    Random random;
    Random rnd = new Random();

    public MainWindow()
    {
        InitializeComponent();

        Random random = new Random();

        int die1 = random.Next(1, 7);
        int die2 = random.Next(1, 7);
        int die3 = random.Next(1, 7);
        int die4 = random.Next(1, 7);

        dieOne.Content = die1;
        dieTwo.Content = die2;
        dieThree.Content = die3;
        dieFour.Content = die4;

        int scoreRound = die1 + die2 + die3 + die4;
        roundScore.Text = "Round Score: " + scoreRound;
    }

    private void dieOne_Click(object sender, RoutedEventArgs e)
    {
        Random random = new Random();
        if (rollsRemaining != 0)
        {
            int die1 = random.Next(1, 7);
            dieOne.Content = die1;
            rollsRemaining = rollsRemaining - 1;
            string string1 = rollsRemaining.ToString();
            rollsLeft.Text = "Rolls Left: " + string1;
            roundScore.Text = "Round Score: " + (die1 + die2 + die3 +die4);
        }
        else
        { }
    }

    private void dieTwo_Click(object sender, RoutedEventArgs e)
    {
        Random random = new Random();
        if (rollsRemaining != 0)
        {
            int die2 = random.Next(1, 7);
            dieTwo.Content = die2;
            rollsRemaining = rollsRemaining - 1;
            string string1 = rollsRemaining.ToString();
            rollsLeft.Text = "Rolls Left: " + string1;
            roundScore.Text = "Round Score: " + (die1 + die2 + die3 + die4);
        }
        else
        { }
    }

    private void dieThree_Click(object sender, RoutedEventArgs e)
    {
        Random random = new Random();
        if (rollsRemaining != 0)
        {
            int die3 = random.Next(1, 7);
            dieThree.Content = die3;
            rollsRemaining = rollsRemaining - 1;
            string string1 = rollsRemaining.ToString();
            rollsLeft.Text = "Rolls Left: " + string1;
            roundScore.Text = "Round Score: " + (die1 + die2 + die3 + die4);
        }
        else
        { }
    }

    private void dieFour_Click(object sender, RoutedEventArgs e)
    {
        Random random = new Random();
        if (rollsRemaining != 0)
        {
            int die4 = random.Next(1, 7);
            dieFour.Content = die4;
            rollsRemaining = rollsRemaining - 1;
            string string1 = rollsRemaining.ToString();
            rollsLeft.Text = "Rolls Left: " + string1;
            roundScore.Text = "Round Score: " + (die1 + die2 + die3 + die4);
        }
        else
        { }
    }

    private void newRound_Click(object sender, RoutedEventArgs e)
    {
        scoreTotal = scoreTotal + scoreRound;
        totalScore.Text = "Total Score: " + scoreTotal;
        rollsRemaining = 6;
        rollsLeft.Text = "Rolls Left: " + rollsRemaining;
        scoreRound = 0;
        roundScore.Text = "Round Score: " + scoreRound;

        Random random = new Random();

        int die1 = random.Next(1, 7);
        int die2 = random.Next(1, 7);
        int die3 = random.Next(1, 7);
        int die4 = random.Next(1, 7);

        dieOne.Content = die1;
        dieTwo.Content = die2;
        dieThree.Content = die3;
        dieFour.Content = die4;
      }
   }
}

Answer 1

你的方法中有骰子的局部变量（die1，die2 ......）以及具有相同名称的类数据成员（die1，die2 ......）

当你使用变量时，首先编译器在当前范围内查找（这是你的方法），然后只搜索外部范围（类）。

您使用局部变量初始化了constructure范围内的数字，因此数据成员仍为0。

单击按钮时，使用值设置另一个局部变量（例如die1），然后将其与其余变量一起添加。所以现在die1（本地）添加了die2,3,4数据成员（它们是0）。所以你得到的只是die1。在其他按钮中也一样。

在此处详细了解范围：

https://msdn.microsoft.com/en-us/library/ms973875.aspx

仅针对这种情况 - 删除局部变量并仅使用数据成员。

public MainWindow()
{
    InitializeComponent();

    Random random = new Random();

    die1 = random.Next(1, 7);
    die2 = random.Next(1, 7);
    die3 = random.Next(1, 7);
    die4 = random.Next(1, 7);

    //...
}

同样在newRound_Click

如何让这个变量在C＃中正常工作？

1 个答案: