Question

我正在开发一个保持运行得分的测验应用程序。例如：错误答案给出-1，正确答案给出+1。它工作正常，但是我在最后一个问题上遇到了麻烦。我希望我的“下一步”按钮更改为表单上的“结果”按钮，然后单击，显示一个消息框，显示包含分数和消息的消息。

只有在最后一个问题上提交了答案时，我才能实现这个按钮更改（因为我现在正在捕捉异常）？

这是我的代码：

    int score = 0;
    int i = -1;
    int a = 0;

    string[] questions = new string[] 
    {
        "Question 1?", 
        "Question 2", 
        "Question 3",
        "Question 4", 
    };

    string[] answers = new string[] 
    {
        "incorrect","correct","incorrect","incorrect",
        "correct","incorrect","incorrect","incorrect",
        "incorrect","incorrect","incorrect","correct",
       "incorrect","incorrect","correct","incorrect"
    };

    string[] quizAnswers = new string[] { "correct", "correct", "correct", "correct" }; 

    public FrmQuestion2()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        this.Hide();
        Tutorial3 t3 = new Tutorial3();
        t3.Show(); 
    }

    private void FrmQuestion2_Load(object sender, EventArgs e)
    {
    }

    private void Sbutton_Click(object sender, EventArgs e)
    {
        try
        {
            if (i < questions.Length)
                i++;
            txtQuestion.Text = questions[i];

            RadA.Text = answers[a];
            a++;
            RadB.Text = answers[a];
            a++;
            RadC.Text = answers[a];
            a++;
            RadD.Text = answers[a];
            a++;
            Sbutton.Visible = true;
            Sbutton.Enabled = true;
            Sbutton.Text = "Submit"; 
           // Subutton.Visible = true;
           // Subutton.Enabled = true;

        }
        catch (Exception ex)
        {
            MessageBox.Show("Only 4 questions available: Your Score is: " + score + " You need at least a score of 3 to progress");
        }
        if (score >= 3)
        {
            nxtbutton.Visible = true;
            nxtbutton.Enabled = true;
        }
        else if (score < 3)
        {
            nxtbutton.Visible = false;
            nxtbutton.Enabled = false;
            RetryButton.Visible = true;
            RetryButton.Enabled = true; 
        }
    }

    private void Subutton_Click(object sender, EventArgs e)
    {
        try
        {
            if (getSelected().Equals(quizAnswers[i]))
            {
                MessageBox.Show("Correct");
                score++;

                txtScore.Text = Convert.ToString("Score:" + score);
                Subutton.Enabled = false; 
                Subutton.Visible = false;
                Sbutton.Visible = true;
                Sbutton.Enabled = true;
                Sbutton.Text = "Next";
            }
            else
            {
                MessageBox.Show("Incorrect");
                score--;

                txtScore.Text = Convert.ToString("Score:" + score);
                Subutton.Enabled = false;
                Subutton.Visible = false;
                Sbutton.Visible = true;
                Sbutton.Enabled = true;
                Sbutton.Text = "Next";
            }
        }
        catch (Exception ex) 
        {
            MessageBox.Show("Please start the quiz"); 

        }
    }

    string getSelected()
    {
        if (RadA.Checked)
            return RadA.Text.ToString();
        if (RadB.Checked)
            return RadB.Text.ToString();
        if (RadC.Checked)
            return RadC.Text.ToString();
        if (RadD.Checked)
            return RadD.Text.ToString();
        return "";
    }

    private void RetryButton_Click(object sender, EventArgs e)
    {
        this.Hide();
        FrmQuestion2 q2 = new FrmQuestion2();
        q2.Show(); 
    }

Answer 1

这个答案的一些假设......

我猜你的nextButton的点击事件是Sbutton_Click（），而且还有一个submitButton，其click事件是Subutton_Click（）。

我不认为您的Sbutton_Click（）事件不应该进行任何分数检查，如果有要显示的话，它应该只显示下一个问题。您的Subutton_Click（）可以检查所选答案，然后决定显示nextButton或resultsButton，因为您的程序应该知道最后一个问题是否已被回答。

然后，当单击结果按钮时，您可以检查您的分数并显示它，并确定是否显示/启用了重试按钮

c＃quiz应用程序运行得分

1 个答案: