Question

目前我正在使用Windows窗体应用程序进行测验游戏。所以我很困惑的是如何将我从Trivia.cs读取的数据（从ListOfData方法）分配给TriviaForm中的变量（questionText）和（答案），以便将它传递给Question.cs处理数据并找出哪一个是正确的答案。

我只是一名初学者，这是我的高中入门课程，所以我非常感谢你的帮助。

所以我做了一个Trivia课程（Trivia.cs）来阅读数据。

namespace D4
{
    class Trivia
    {
        // Fields
        private const string FileName = "WumpusTrivia.txt";
        private string questionText;
        private string[] answers = new string[4];

        public Trivia()
        {

        }

        /// This method will return the list of data.
        public List<Question> ListOfData()
        {
            List<Question> ls = new List<Question>();
            using (StreamReader sr = new StreamReader(FileName))
            {
                while (!sr.EndOfStream)
                {
                    this.questionText = sr.ReadLine();
                    for (int i = 0; i < 4; i++)
                        this.answers[i] = sr.ReadLine();
                    sr.ReadLine();
                    ls.Add(new Question(this.questionText, this.answers)); 
                }
            }
            return ls;
        }
    }
}

一个问题类（Question.cs），用于处理数据并返回值以放入文本框。

namespace D4
{
    class Question
    {
        private string question;
        private string[] answers = new string[4];
        private int correctAnswer;
        private string[] freeTrivia;
        private Trivia trivia;

        public Question(string question, string[] answers)
        {
            this.trivia = new Trivia();

            this.question = question;
            this.answers = answers;
            for (int i = 0; i < 4; i++)
            {
                if (answers[i].ToString().EndsWith("+"))
                {
                    this.correctAnswer = i;
                    answers[i].ToString().Replace('+', ' ');
                }
            }
        }

        public string QuestionText { get { return this.question; } }
        public string[] Answers { get { return this.answers; } }
        public int CorrectAnswer { get { return this.correctAnswer; } }
        public string[] Freetrivia { get { return this.freeTrivia; } }
    }
}

还有一个TriviaForm类（TriviaForm.cs）来显示文本框中Trivia类的数据。

namespace D4
{
    public partial class TriviaForm : Form
    {
        //// Fields
        private Trivia trivia;
        private Question question;
        private string questionText;
        private string[] answers = new string[4];
        private Question[] data;
        private const int wumpusMaxQuestions = 5;
        private const int hazardAndPurchaseMaxQuestions = 3;


        // Replace these later after finished connecting all objects.
        private bool hazardAndPurchase = false;
        private bool wumpus = false;

        public TriviaForm()
        {
            InitializeComponent();

            this.trivia = new Trivia();
            this.data = trivia.ListOfData().ToArray();
            this.questionText = data[0].ToString();
            for (int i = 0; i < 4; i++)
                this.answers[i] = data[i].ToString();

            this.question = new Question(questionText, answers);

            QuestionOutputter();
        }

        // Displays the questions and answers on the form.
        private void QuestionOutputter()
        {
            this.txtQuestion.Text = question.QuestionText;
            this.txtBoxA.Text = question.Answers[0];
            this.txtBoxB.Text = question.Answers[1];
            this.txtBoxC.Text = question.Answers[2];
            this.txtBoxD.Text = question.Answers[3];
        }
    }
}

对不起那些糟糕的问题，我很抱歉，但我终于明白了。我遇到的问题是问题类给出了错误。这是因为我使用questionText将null传递给它，并在TriviaForm类中回答变量。我的代码：

this.data = trivia.ListOfData().ToArray();
        this.questionText = data[0].ToString();
        for (int i = 0; i < 4; i++)
            this.answers[i] = data[i].ToString();

完全错了。显然我只需要做一个foreach循环。我的解决方案：

this.data = trivia.ListOfData().ToArray();
foreach (Question q in this.data)
        {
            this.questionText = q.QuestionText.ToString();
            for (int i = 0; i < 4; i++)
                this.answers[i] = q.Answers[i];
            this.question = new Question(questionText, answers);
        }

我尝试了这个，但效果确实很好！抱歉浪费你的时间。

Answer 1

在每个答案文本框旁边添加一个单选按钮，并将事件处理程序添加到这些单选按钮，以评估所选答案是否正确。

这样的事情可能适用于你现有的代码，假设你把ttBoxB旁边的radioButton2和txtBoxC旁边的radioButton3等等：

    private void radioButton2_CheckedChanged(object sender, EventArgs e)
    {
        if (((System.Windows.Forms.RadioButton)sender).Text.Substring(11,1) = this.Question.correctAnswer + 1) {
            CorrectAnswer_DoSomethingHere();
        } else {
            Incorrect_DoSomethingElse();   
        }
    }

如何使用类列表中的数据？

1 个答案: