我已经被困在这段代码上几个小时了。我是 C# 新手，仍在学习过程中，所以如果你能解决我将不胜感激

Question

我要创建的程序是我需要随机生成 5 道数学题，最后输出分数。我知道这可能看起来很简单，但我尝试了许多不同的方法来做到这一点，但它给了我相同的问题和重复的答案，但它确实告诉我它是否正确，所以循环几乎可以工作。

using System;

namespace Homework
{
    class Program
    {
        static void Main(string[] args)
        {
            // Maths test problem

            string name;
            int score, ans, question1;

            Console.Write("Enter your name: ");
            name = Console.ReadLine();

            score = 0;


            Random rnd = new Random();
            int num1 = rnd.Next(10, 51);
            int num2 = rnd.Next(10, 51);

            int[] numbers = new int[2];
            numbers[0] = num1;
            numbers[1] = num2;

            Console.Write(num1 + "+" + num2 + "= ");
            question1 = Convert.ToInt32(Console.ReadLine());
            ans = num1 + num2;

            for (int i = 0; i < 5; i++)
            {
                Console.Write(question1);
                while (question1 == ans)
                {
                    Console.WriteLine("Correct");
                    score = score + 1;
                    Console.Write(question1);
                    break;
                }
                while (question1 != ans)
                {
                    Console.WriteLine("Not quite. The answer was " + ans);
                    Console.Write(question1);
                    break;
                }
            }
            Console.WriteLine("That's the end of the test. You scored " + score);



        }
    }
}

Answer 1

您可能需要考虑重构事物，以便由单独的函数提出一个问题。

这样的事情会让用户有机会回答每个问题；您的原始代码不清楚您是否希望他们进行多次尝试。 （不过，很容易在TestQuestion...中添加尝试循环）

using System;

namespace Homework
{
    class Program
    {
        static bool TestQuestion()
        {
            Random rnd = new Random();
            int num1 = rnd.Next(10, 51);
            int num2 = rnd.Next(10, 51);
            Console.Write(num1 + "+" + num2 + "= ");
            var userAnswer = Convert.ToInt32(Console.ReadLine());
            var correctAnswer = num1 + num2;
            if (userAnswer == correctAnswer)
            {
                Console.WriteLine("Correct");
                return true;
            }
            Console.WriteLine("Not quite. The answer was " + correctAnswer);
            return false;
        }
        static void Main(string[] args)
        {
            Console.Write("Enter your name: ");
            string name = Console.ReadLine();
            int score = 0;
            for (int i = 0; i < 5; i++)
            {
                if (TestQuestion())  // Returns true if user was correct
                {
                    score++;
                }
            }
            Console.WriteLine("That's the end of the test. You scored " + score);
        }
    }
}