Question

到目前为止，我已经得到随机数和单选按钮，我的具体问题是如果用户猜错了如何显示实际答案。我会在if / else语句的labelOutput上显示这个。此外，我还想提一下人们猜测在labelHint上说偶数或奇数之前的实际数字。您可以通过代码中的注释查看我正在处理的部分。

namespace GuessANumber
{
public partial class Form1 : Form
{
    public Form1()
    {

        InitializeComponent();

        labelHint.Text = "Hover over for a hint";

        labelOutput.Visible = true;

        Init();

    }

    Random random = new Random();

    int correctAnswer;

    private void Init()
    {
        correctAnswer = random.Next(1, 6);
    }

    private bool UserSelectedRandomButton()
    {
        if (radioButton1.Checked == true)
            return (correctAnswer == 1);
        if (radioButton2.Checked == true)
            return (correctAnswer == 2);
        if (radioButton3.Checked == true)
            return (correctAnswer == 3);
        if (radioButton4.Checked == true)
            return (correctAnswer == 4);
        if (radioButton5.Checked == true)
            return (correctAnswer == 5);
        return false;
    }


    private void buttonSubmit_Click(object sender, EventArgs e)
    {

        radioButton1.Enabled = false;
        radioButton2.Enabled = false;
        radioButton3.Enabled = false;
        radioButton4.Enabled = false;
        radioButton5.Enabled = false;

        labelOutput.Visible = true;

        if (UserSelectedRandomButton() == true)
        {
            labelOutput.Text = "You are correct!";
        }
        else
        {

            labelOutput.Text = (" Sorry, the correct answer is" + " " + correctAnswer);//now working :)
        }
        correctAnswer = random.Next(1, 6);
    }



    private void labelHint_MouseEnter(object sender, EventArgs e)
    {

        //still working on this, if the number is odd, label changes to odd statement, if even says even statement

        labelHint.Text = "The number is odd";


    }

    private void labelHint_MouseLeave(object sender, EventArgs e)
    {

        labelHint.Text = "Hover over for a hint";
    }




    private void buttonReset_Click(object sender, EventArgs e)
    {
        radioButton1.Enabled = true;
        radioButton2.Enabled = true;
        radioButton3.Enabled = true;
        radioButton4.Enabled = true;
        radioButton5.Enabled = true;

        radioButton1.Checked = false;
        radioButton2.Checked = false;
        radioButton3.Checked = false;
        radioButton4.Checked = false;
        radioButton5.Checked = false;

        labelOutput.Visible = false;




    }



}

}

Answer 1

两个提示都不起作用，而且没有显示＆＃34;正确＆＃34;答案有同样的根本问题。您正在UserSelectedRandomButton()函数中抓取一个新的随机数，然后有效地将其丢弃（因为它超出了范围）。

获得正确答案＆＃34;功能正常，您需要将该数字分配给类级别变量，然后引用它而不是再次调用UserSelectedRandomButton，如下所示：

//This is our class level variable
int correctAnswer;
private bool UserSelectedRandomButton()
{
    Random random = new Random();
    correctAnswer = random.Next(1, 6);

    if (radioButton1.Checked == true)
        return (correctAnswer == 1);
    if (radioButton2.Checked == true)
        return (correctAnswer == 2);
    if (radioButton3.Checked == true)
        return (correctAnswer == 3);
    if (radioButton4.Checked == true)
        return (correctAnswer == 4);
    if (radioButton5.Checked == true)
        return (correctAnswer == 5);
    return false;

}


private void buttonsubmit_Click(object sender, EventArgs e)
{
    radioButton1.Enabled = false;
    radioButton2.Enabled = false;
    radioButton3.Enabled = false;
    radioButton4.Enabled = false;
    radioButton5.Enabled = false;



    if (UserSelectedRandomButton() == true)
    {
        labelOutput.Text = "You are correct!";
    }
    else
    {

        labelOutput.Text = (" Sorry, the correct answer is" + " " + correctAnswer);//now working :)
    }
}

现在要获得提示，你必须做同样的事情（分配给类级变量），但是有一个问题。当用户按下＆＃34;提交＆＃34;时，将绘制随机数。按钮，所以当我们显示提示时，我们不知道数字是多少！可能最简单的解决方法是在程序启动时绘制一个数字（我将它放在＆＃34; Init＆＃34;可以从某个地方调用的函数）然后在完成后更新它签入＆＃34;提交＆＃34; （它也可以在＆＃34;重置＆＃34;）中完成。

Random random = new Random();

//This is our class level variable
int correctAnswer;

private void Init()
{
    correctAnswer = random.Next(1, 6);
}

private bool UserSelectedRandomButton()
{
    if (radioButton1.Checked == true)
        return (correctAnswer == 1);
    if (radioButton2.Checked == true)
        return (correctAnswer == 2);
    if (radioButton3.Checked == true)
        return (correctAnswer == 3);
    if (radioButton4.Checked == true)
        return (correctAnswer == 4);
    if (radioButton5.Checked == true)
        return (correctAnswer == 5);
    return false;

}


private void buttonsubmit_Click(object sender, EventArgs e)
{
    radioButton1.Enabled = false;
    radioButton2.Enabled = false;
    radioButton3.Enabled = false;
    radioButton4.Enabled = false;
    radioButton5.Enabled = false;



    if (UserSelectedRandomButton() == true)
    {
        labelOutput.Text = "You are correct!";
    }
    else
    {

        labelOutput.Text = (" Sorry, the correct answer is" + " " + correctAnswer);//now working :)
    }
    correctAnswer = random.Next(1, 6);
}

您的工具提示会检查＆＃34; correctAnswer＆＃34;变量在决定说＆＃34;偶然＆＃34;或＆＃34;奇数＆＃34;。您还应该注意到我将Random类实例移动到类范围中（而不是将其放在函数范围内）。这被认为是Random类的最佳实践，因为每次使用它时重新创建它都会减少随机性＆＃34;随机性。生成的数字。它还有助于代码重用，因为我们现在在两个地方绘制一个数字。

让我知道我是否可以澄清任何事情！

猜猜随机单选按钮

1 个答案: