所以正如我所说的，我是一个完全的编程新手，我从做一个小测试程序开始我的练习。

如果人们答错了，我试着让他们回到同一个问题上来。我试着把它全部放在一个while循环中，让while循环运行，直到得到正确的答案。但是当我执行while循环时，我不能指向包含用户输入的“ask”变量。如果这有意义，我希望你能帮忙:）

下面是我的代码:

using System;

namespace Quiz1
{
    class Program
    {
        /// <summary>
        /// Reads from the command prompt and attempts to convert into an integer.
        /// </summary>
        /// <returns>Returns the converted integer value read from the command prompt, or zero if unsuccessful.</returns>
        /// 
        private static int ReadNumber()
        {
            string text = Console.ReadLine();

            if (int.TryParse(text, out int voresTal) == true)
            {
                return voresTal;
            }

            return 0;
        }
        /// <summary>
        /// Requests the user to enter their age, using minAge and maxAge as lower and upper age limits.
        /// If incorrect input is detected, proper feedback is provided to the user.
        /// </summary>
        /// <param name="minAge">The minimum acceptable age.</param>
        /// <param name="maxAge">The maximum acceptable age.</param>
        /// <returns>Returns a valid age within rage of minAge and maxAge, as an integer value.</returns>
        private static int ReadAge(int minAge, int maxAge)
        {
            int age = minAge - 1;

            while (age < minAge || age > maxAge)
            {
                Console.WriteLine("Indtast din Alder.");

                age = ReadNumber();

                if (age == 0)
                {
                    //Giver brugeren besked om at han fejlede.
                    Console.WriteLine("Input a Valid Age between 5-120");
                }
                else if (age < minAge || age > maxAge)
                {
                    Console.WriteLine("Impossible for you to be: " + age + " old ");
                }
            }

            return age;
        }

        private static int AskQuestion(string question, string[] answers)
        {
            int choice = -1;

            while (choice == -1)
            {
                Console.WriteLine(question);

                for (int i = 0; i < answers.Length; i++)
                {
                    int choiceNumber = i + 1;

                    Console.WriteLine(choiceNumber + ": " + answers[i]);
                }

                Console.WriteLine("Your Choice: ");

                int input = ReadNumber();

                if (input >= 1 && input <= answers.Length)
                {
                    choice = input - 1;
                }

            }

            return choice;
        }
        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to the Allround quiz for your enjoyment!");
            Console.WriteLine("Lets start by knowing your age to determine the Difficulty");

            int age = ReadAge(5, 120);

            Console.WriteLine("You are: " + age + "old");
            Console.WriteLine("Thank you, i now know your age and will determine the Difficulty. Good luck !");

            if (age <= 16)
            {

                        string[] answers = new string[]
                                        {
                                            "yes",
                                            "no",
                                            "none of the above"
                                        };

                        int theRightAnswer = 0;

                        int ask = AskQuestion(
                            "Is the earth round or flat ?",
                            answers
                            );

                        Console.WriteLine("Your answer: " + answers[ask]);

                        if (ask == theRightAnswer)
                        {
                            Console.WriteLine("Congratz your correct!");
                        }

            }
        }
    }
}