如何檢查字典C＃中的用戶輸入是否相同

Question

我正在Visual Studio 2015 UWP C＃中制作一個游戲，用戶輸入他們可以想到的所有單詞，在限定時間內以“ Ac”開頭，並且得分變量隨每個單詞遞增。 我的C＃UWP應用程序中有一個Dictionary Collection，其中包含字典中的所有“ Ac”字。 游戲運行良好，唯一的好處是用戶可以按需要多次輸入相同的單詞，並且分數仍會增加。 有什么辦法可以處理重復的用戶輸入嗎？ 這是我的代碼（不包括簡短的數組中的約400個單詞，也不包括DispatcherTimer）：

    private void btnEnter_Click(object sender, RoutedEventArgs e)
    {
        Dictionary<string, int> WordsWithAc = new Dictionary<string, int>();
        WordsWithAc.Add("e", 1);
        WordsWithAc.Add("t", 2);
        WordsWithAc.Add("ed", 3);
        WordsWithAc.Add("es", 4);
        WordsWithAc.Add("he", 5);
        WordsWithAc.Add("hy", 6);
        WordsWithAc.Add("id", 7);
        WordsWithAc.Add("me", 8);
        WordsWithAc.Add("ne",9);
        WordsWithAc.Add("re",10); 

        if (GlobalClassAttention.totalRecallScore >= 150)
        {
            btnLevel2.Visibility = Visibility.Visible;
        }

        if (WordsWithAc.ContainsKey(txtUserInput.Text))
        {
            GlobalClassAttention.totalRecallScore += 10;
            txtScore.Text=GlobalClassAttention.totalRecallScore.ToString();
            imgCorrectSign.Visibility = Visibility.Visible;
            imgX.Visibility = Visibility.Collapsed;
            WordsWithAc.Remove(txtUserInput.Text); //Doesn't remove it from the dictionary so the user can enter in the same word more than once
        }
        else
        {
            imgX.Visibility = Visibility.Visible;
            imgCorrectSign.Visibility = Visibility.Collapsed;
        }
    }

    private void btnLevel2_Click(object sender, RoutedEventArgs e)
    {
        Frame.Navigate(typeof(TotalRecallLevel2));
    }

該圖顯示用戶兩次輸入了“ Act”，並且樂譜仍然增加，用戶不應輸入重復的單詞。

我曾嘗試使用數組來代替，但被指向使用Dictionary。 這是我嘗試過的其他事情的鏈接。 https://www.codeproject.com/Questions/1167927/How-to-eliminate-duplicate-user-input-within-the-b

Answer 1

嘗試在事件函數之外聲明字典。 不會在每次單擊按鈕時對其進行初始化。

Dictionary<string, int> WordsWithAc = new Dictionary<string, int>();
    WordsWithAc.Add("e", 1);
    WordsWithAc.Add("t", 2);
    WordsWithAc.Add("ed", 3);
    WordsWithAc.Add("es", 4);
    WordsWithAc.Add("he", 5);
    WordsWithAc.Add("hy", 6);
    WordsWithAc.Add("id", 7);
    WordsWithAc.Add("me", 8);
    WordsWithAc.Add("ne",9);
    WordsWithAc.Add("re",10);
private void btnEnter_Click(object sender, RoutedEventArgs e)
{


    if (GlobalClassAttention.totalRecallScore >= 150)
    {
        btnLevel2.Visibility = Visibility.Visible;
    }

    if (WordsWithAc.ContainsKey(txtUserInput.Text))
    {
        GlobalClassAttention.totalRecallScore += 10;
        txtScore.Text=GlobalClassAttention.totalRecallScore.ToString();
        imgCorrectSign.Visibility = Visibility.Visible;
        imgX.Visibility = Visibility.Collapsed;
        WordsWithAc.Remove(txtUserInput.Text); //Doesn't remove it from the dictionary so the user can enter in the same word more than once
    }
    else
    {
        imgX.Visibility = Visibility.Visible;
        imgCorrectSign.Visibility = Visibility.Collapsed;
    }
}