c# - 连续显示字符串的字符并为标签 c# 制作计时器

Question

我正在尝试使用 C# 在 Windows 窗体中制作刽子手。

我想显示点或其他东西而不是字母。
示例:“你好”将是:

. . . . . or _ _ _ _ _ 

我也可以向字母展示那些点上的优点吗？

例子:

 word: Hello.
 player try: e.
 Output: Correct.
 Show: . e . . . or _ e _ _ _. 

当玩家给出一个正确的字母时，会出现一个“正确”的标签，我可以让这个标签在几秒钟后消失吗？我已经知道了:

if (woord.Contains(letter))
{
      labelJuist.Text = "Juist!";
}
else
{
      labelFout.Text = "Fout!";
}

Answer 1

如果你有一个 string称为 WordToGuess代表实际的词，你有一个 BindingList<char>称为 guesses , 然后只显示他们猜到的单词的字符，你可以使用类似的东西:

lblWord.Text = string.Join(" ", 
    WordToGuess.Select(chr => guesses.Contains(chr) ? chr : '_'));

这将只显示来自 WordToGuess 的字符存在于 guesses , 并将为其他人显示下划线字符。通过使用 string.Join , 我们还可以在每个字符之间插入一个空格，以便下划线更好地突出。

此外，为了将字符存储在一个位置，您可能希望将它们放在 BindingList<char> guesses 中。 , 然后设置 DataBinding的 ListBox到 guesses列表。然后，每次用户提交新的猜测时，将其添加到列表中。绑定(bind)列表应该是一个类级别范围的字段，以便它保留它的内容。这样列表框会自动显示字母，您仍然可以使用私有(private)列表(这比列表框的 Items 属性稍微容易一些)。

这是一个可复制/粘贴的示例，您可以将其放入新的 WinForms 中项目(使用“StackOverflow”作为硬编码词):

public partial class Form1 : Form
{
    private Button btnSubmit;
    private Label lblGuess;
    private TextBox txtGuess;
    private Label lblWord;
    private Label lblGuessedLetters;
    private ListBox lstGuessedLetters;
    private readonly BindingList<char> guesses = new BindingList<char>();

    private const string WordToGuess = "StackOverflow";

    private const int controlHeight = 20;
    private const int controlWidth = 200;
    private const int controlPadding = 10;

    public Form1()
    {
        InitializeComponent();

        lblWord = new Label
        {
            Left = controlPadding,
            Top = controlPadding,
            Height = controlHeight,
            Width = controlWidth,
            Text = new string('_', WordToGuess.Length)
        };
        Controls.Add(lblWord);

        lblGuessedLetters = new Label
        {
            Left = controlPadding,
            Top = lblWord.Bottom + controlPadding,
            Height = controlHeight,
            Width = controlWidth,
            Text = "Guessed Letters:"
        };
        Controls.Add(lblGuessedLetters);

        lstGuessedLetters = new ListBox
        {
            Left = controlPadding,
            Top = lblGuessedLetters.Bottom + controlPadding,
            Height = controlHeight * 5,
            Width = controlWidth,
            Enabled = false,
            DataSource = guesses,
            SelectionMode = SelectionMode.None
        };
        Controls.Add(lstGuessedLetters);

        lblGuess = new Label
        {
            Left = controlPadding,
            Top = lstGuessedLetters.Bottom + controlPadding,
            Height = controlHeight,
            Width = controlWidth,
            Text = "Enter your guess below"
        };
        Controls.Add(lblGuess);

        txtGuess = new TextBox
        {
            Left = controlPadding,
            Top = lblGuess.Bottom + controlPadding,
            Height = controlHeight,
            Width = controlWidth
        };
        Controls.Add(txtGuess);

        btnSubmit = new Button
        {
            Left = controlPadding,
            Top = txtGuess.Bottom + controlPadding,
            Height = controlHeight,
            Width = controlWidth,
            Text = "Submit Guess"
        };
        btnSubmit.Click += BtnSubmit_Click;
        AcceptButton = btnSubmit; // Make this button default - just press Enter
        Controls.Add(btnSubmit);
    }

    private void BtnSubmit_Click(object sender, EventArgs e)
    {
        if (string.IsNullOrWhiteSpace(txtGuess.Text)) 
        {
            MessageBox.Show("enter a guess in the textbox");
        }
        else
        {
            // Grab the first letter in case they typed more than one
            var letter = txtGuess.Text[0];

            if (guesses.Contains(letter)) 
            {
                MessageBox.Show("you already guessed that letter!");
            }
            else
            {
                guesses.Add(letter);
                lblWord.Text = string.Join(" ", 
                    WordToGuess.Select(chr => guesses.Contains(chr) ? chr : '_'));
            }
        }

        txtGuess.Focus();
        txtGuess.Text = "";
    }
}

输出