需要帮助，我希望我的开关箱在用户输入正确或错误时循环显示

Question

所以我对编程尚不熟悉，所以我不知道该如何进行这项工作，我希望每次用户获得正确或错误答案时，切换情况都循环到新问题。我不确定我是否正确路径上的m将是很高兴有人可以教我。请随时纠正我，请原谅我的英语。

int ans;
string sign;
int score = 0;


public timedchallenge()
{
    InitializeComponent();
}

void Timedchallenge_Load(object sender, EventArgs e)
{

    Random rand = new Random();
    int num1 = rand.Next(1, 31);
    int num2 = rand.Next(1, 31);
    int cycles = rand.Next(1, 4);

    {

            switch (cycles)
        {
            case 1:
                ans = num1 + num2;
                sign = "+";
                break;
            case 2:
                ans = num1 - num1;
                sign = "-";
                break;
            case 3:
                ans = num1 * num2;
                sign = "*";
                break;
            default:
                ans = 0;
                sign = "error ";
                break;


        }
    }

    label2.Text = num1.ToString();
    label3.Text = sign;
    label4.Text = num2.ToString();


    RandomWelcomeMessages myRandomWelcomeMessages = new RandomWelcomeMessages();
    String msg = myRandomWelcomeMessages.GetRandom();

    labelmsgs.Text = msg + " " + typeofquiz.username;

}

private void ButtonSubmit_Click(object sender, EventArgs e)
{
    if (textBoxAns.Text == ans.ToString())

    {
        score++;
        textBoxAns.Text = "";
        labelScore.Text = score.ToString();

    }
    else
    {

        textBoxAns.Text = "";
    }
}

Answer 1

您没有确切地发布RandomWelcomeMessages类的实际作用，所以我假设这只是程序启动时要做的一件事。

我首先会提供一种方法来生成一个新问题，并在适当的地方调用它。将其封装在自己的类中可能是值得的。

int ans;
string sign;
int score = 0;

public timedchallenge()
{
    InitializeComponent();
}

void Timedchallenge_Load(object sender, EventArgs e)
{
    RandomWelcomeMessages myRandomWelcomeMessages = new RandomWelcomeMessages();
    String msg = myRandomWelcomeMessages.GetRandom();
    labelmsgs.Text = msg + " " + typeofquiz.username;

    AdvanceQuestion();
}

private void ButtonSubmit_Click(object sender, EventArgs e)
{
    bool answerCorrect = textBoxAns.Text == ans.ToString();
    if (answerCorrect)
        labelScore.Text = ++score.ToString();

    AdvanceQuestion();
}

private void AdvanceQuestion() {
    Random rand = new Random();
    int num1 = rand.Next(1, 31);
    int num2 = rand.Next(1, 31);
    int cycles = rand.Next(1, 4);

    switch (cycles)
    {
        case 1:
            ans = num1 + num2;
            sign = "+";
            break;
        case 2:
            ans = num1 - num1;
            sign = "-";
            break;
        case 3:
            ans = num1 * num2;
            sign = "*";
            break;
        default:
            // you should probably throw an exception here
            ans = 0;
            sign = "error ";
            break;
    }

    label2.Text = num1.ToString();
    label3.Text = sign;
    label4.Text = num2.ToString();  
    textBoxAns.Text = "";
}