C# 向每个用户询问指定问题的控制台应用程序

我正在尝试在C#中创建一个控制台应用程序，要求用户先登录，然后处理，只回答每个用户指定的问题。最好的方法是什么？我有四个问题，我只想问第一个用户前两个问题，第二个用户另外两个问题

下面是我的代码：

static void Main(string[] args)
{
    String username;
    String password;
    int row;
    string[,] accnts = { { "jack", "111", "1" }, { "ibo", "121", "2" } };

    Console.Write("enter username >> ");
    username = Console.ReadLine();
    Console.Write("enter password >> ");
    password = Console.ReadLine();

    for (row = 0; row < 3; row++)
    {
        if (username.Equals(accnts[row, 0]) && password.Equals(accnts[row, 1]))
        {
            Console.WriteLine("welcome " + accnts[row, 0]);
        }

        else if (username.Equals(accnts[row + 1, 0]) && password.Equals(accnts[row + 1, 1]))
        {
            Console.WriteLine("welcome " + accnts[row + 1, 0]);
        }

        else
        {
            Console.WriteLine("invalid access");
            break;
        }

        string[,] question_id = { { "1", "1" }, { "1", "2" }, { "2", "3" }, { "2", "4" } };
        string[,] questions = { { "Türkiyenin baskenti neresidir?", "1" }, { "Baskomutan kim?", "2" }, { "2 kere 2?", "3" }, { "when did the world war 1 start?", "4" } };
        string[,] Answers = { { "a)ankara b)istanbul c)izmir", "1" }, { "a)ismet b)Atatürk c)Ali ", "2" }, { " a)1 b)2 c)4 ", "3" }, { " a)1912 b)1914 c)1915", "4" } };
        string[,] trueAnswers = { { "a", "1" }, { "b", "2" }, { "c", "3" }, { "c", "4" } };

        int result = 0;
        string answers = "";
        for (int i = 0; i < questions.GetLength(0); i++)
        {
            Console.WriteLine(questions[i, 0]);
            Console.WriteLine("--------------------------");

            for (int y = 0; y < Answers.GetLength(0); y++)
            {
                if (Answers[y, 1] == questions[i, 1])
                {
                    Console.WriteLine(Answers[y, 0]);
                    answers = Console.ReadLine();

                    for (int z = 0; z < trueAnswers.GetLength(0); z++)
                    {
                        if (trueAnswers[z, 1] == questions[i, 1])
                        {
                            if (trueAnswers[z, 0] == answers)
                                result = result + 10;
                            Console.WriteLine("total is  " + result);
                        }
                    }
                }
            }
        }

        if (result < 20)
        {
            Console.WriteLine("failed");
        }
        else
        {
            Console.WriteLine("congrats");
        }

        return;
    }
}

static void Main（字符串[]args）
{
字符串用户名；
字符串密码；
int行；
字符串[，]accnts={{“jack”，“111”，“1”}，{“ibo”，“121”，“2”}；
控制台。写入（“输入用户名>>”；
username=Console.ReadLine（）；
控制台。写入（“输入密码>>”；
password=Console.ReadLine（）；
用于（行=0；行<3；行++）
{
if（username.Equals（账户[row，0]）和password.Equals（账户[row，1]））
{
Console.WriteLine（“欢迎”+accnts[row，0]）；
}
else if（username.Equals（账户[row+1,0]）和password.Equals（账户[row+1,1]））
{
Console.WriteLine（“欢迎”+accnts[row+1,0]）；
}
其他的
{
Console.WriteLine（“无效访问”）；
打破
}
字符串[，]问题id={{“1”，“1”}，{“1”，“2”}，{“2”，“3”}，{“2”，“4”}；
字符串[，]问题={{“Türkiyenin baskenti neresidir？”，“1”}，{“Baskomutan kim？”，“2”}，{“2 kere 2？”，“3”}，{“第一次世界大战是什么时候开始的？”，“4”}；
字符串[，]答案={{a）安卡拉b）伊斯坦布尔c）伊兹密尔，{a）伊斯梅特b）阿塔图尔克c）阿里，{a）1b）2c）4”，“3}，{a）1912b）1914c）1915c），4}；
字符串[，]trueAnswers={{“a”，“1”}，{“b”，“2”}，{“c”，“3”}，{“c”，“4”}；
int结果=0；
字符串答案=”；
for（inti=0；i

首先让我告诉你完全错误的方法。这是我能做的最脏、最快的修复：

static void Main(string[] args)
    {
        String username;
        String password;
        int row;
        string[,] accnts = { { "jack", "111", "1" }, { "ibo", "121", "2" } };

        Console.Write("enter username >> ");
        username = Console.ReadLine();
        Console.Write("enter password >> ");
        password = Console.ReadLine();

        for (row = 0; row < 3; row++)
        {
            if (username.Equals(accnts[row, 0]) && password.Equals(accnts[row, 1]))
            {
                Console.WriteLine("welcome " + accnts[row, 0]);

            }
            else if (username.Equals(accnts[row, 0]) && password.Equals(accnts[row, 1]))
            {
                Console.WriteLine("welcome " + accnts[row + 1, 0]);
            }
            else
            {
                Console.WriteLine("invalid access");
                // changed break to continue, because it was crashing
                continue;
            }


            string[,] question_id = { { "1", "1" }, { "1", "2" }, { "2", "3" }, { "2", "4" } };
            string[,] questions = { { "Türkiyenin baskenti neresidir?", "1" }, { "Baskomutan kim?", "2" }, { "2 kere 2?", "3" }, { "when did the world war 1 start?", "4" } };
            string[,] Answers = { { "a)ankara b)istanbul c)izmir", "1" }, { "a)ismet b)Atatürk c)Ali ", "2" }, { " a)1 b)2 c)4 ", "3" }, { " a)1912 b)1914 c)1915", "4" } };
            string[,] trueAnswers = { { "a", "1" }, { "b", "2" }, { "c", "3" }, { "c", "4" } };

            int result = 0;
            string answers = "";
            // here I've added a start and end thingy to offset the loop acording to logged user.
            int start = 0;
            int endModifier = 2;
            if (username == accnts[1,0])
            {
                start = 2;
                endModifier = 0;
            }
            for (int i = start; i < questions.GetLength(0) - endModifier; i++)
            {
                Console.WriteLine(questions[i, 0]);
                Console.WriteLine("--------------------------");

                for (int y = 0; y < Answers.GetLength(0); y++)
                {
                    if (Answers[y, 1] == questions[i, 1])
                    {

                        Console.WriteLine(Answers[y, 0]);

                        answers = Console.ReadLine();
                        for (int z = 0; z < trueAnswers.GetLength(0); z++)

                        {
                            if (trueAnswers[z, 1] == questions[i, 1])
                            {
                                if (trueAnswers[z, 0] == answers)
                                    result = result + 10;
                                Console.WriteLine("total is  " + result);
                            }

                        }
                    }

                }
            }

            if (result < 20)
            {
                Console.WriteLine("failed");
            }
            else
            {
                Console.WriteLine("congrats");
            }

            return;
        }
    }

问题的内部类：

    class Question
    {
        public string QuestionText { get; set; }
        public List<Answer> AnswersList { get; set; }
    }

填充这些类很容易，与您的示例几乎相同，但名称更加精巧。列表是你们的朋友，你们可以把所有账户都存储在字段中，但并没有那个些讨厌的索引

if可能有点复杂，但另一种方法是使用CheckUserPassword方法返回帐户，或者使用它输出参数。。。这是相当多的信息，所以我保留原样

现在，完成的代码如下所示：

static void Main(string[] args)
    {
        List<Account> accountsList = new List<Account>();
        accountsList.Add(new Account { UserName = "jack", Password = "111", Group = 1 });
        accountsList.Add(new Account { UserName = "ibo", Password = "121", Group = 2 });

        Console.Write("enter username >> ");
        string username = Console.ReadLine();
        Console.Write("enter password >> ");
        string password = Console.ReadLine();

        if (CheckUserPassword(accountsList, username, password))
        {
            List<Question> questions = FillQuestions();

            int result = 0;

            for (int i = 0; i < questions.Count; i++)
            {
                if (questions[i].DesiredGroup == accountsList.Find(x => x.UserName == username).Group)
                {
                    continue;
                }
                Console.WriteLine();
                Console.WriteLine(questions[i].QuestionText);
                Console.WriteLine("--------------------------");

                WriteAnswers(questions[i].AnswersList);

                string answers = Console.ReadLine();
                for (int j = 0; j < questions[i].AnswersList.Count; j++)
                {
                    if (questions[i].AnswersList[j].AcceptableLetter == answers)
                    {
                        if (questions[i].AnswersList[j].IsCorrect)
                        {
                            Console.WriteLine(questions[i].AnswersList[j].AcceptableLetter + " is correct");
                            result += 10;
                        }
                        else
                        {
                            Console.WriteLine(questions[i].AnswersList[j].AcceptableLetter + " is incorrect");
                        }
                    }
                }
            }

            if (result < 15)
            {
                Console.WriteLine("failed");
            }
            else
            {
                Console.WriteLine("congrats");
            }
        }

        Console.Read();

    }

    private static void WriteAnswers(List<Answer> answersList)
    {
        char[] alphabetLetters = { 'a', 'b', 'c' };
        for (int i = 0; i < answersList.Count; i++)
        {
            Console.WriteLine(alphabetLetters[i] + ") " + answersList[i].AnswerText);
        }
    }

    private static List<Question> FillQuestions()
    {
        List<Question> questionList = new List<Question>();
        List<Answer> answerList = new List<Answer>();

        answerList.Add(new Answer { AnswerText = "Ankara", IsCorrect = true, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Istambul", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Izmir", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Türkiyenin baskenti neresidir?", AnswersList = answerList, DesiredGroup = 1 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "ismet", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Atatürk", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Ali", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Baskomutan kim?", AnswersList = answerList, DesiredGroup = 1 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "2", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "4", IsCorrect = true, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "2 kere 2?", AnswersList = answerList, DesiredGroup = 2 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1912", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "1914", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "1915", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "When did the world war 1 start?", AnswersList = answerList, DesiredGroup = 2 });

        return questionList;
    }

    private static bool CheckUserPassword(List<Account> accountsList, string username, string password)
    {
        foreach (Account account in accountsList)
        {
            if (account.UserName == username)
            {
                if (account.Password == password)
                {
                    Console.WriteLine("welcome " + account.UserName);
                    return true;
                }
                else
                {
                    Console.WriteLine("invalid access");
                    return false;
                }
            }
        }
        return false;
    }

    class Account
    {
        public string UserName { get; set; }
        public string Password { get; set; }
        public int Group { get; set; }
    }

    class Question
    {
        public string QuestionText { get; set; }
        public List<Answer> AnswersList { get; set; }
        public int DesiredGroup { get; set; }
    }

    class Answer
    {
        public string AnswerText { get; set; }
        public bool IsCorrect { get; set; }
        public string AcceptableLetter { get; set; }
    }

static void Main（字符串[]args）
{
列表帐户列表=新列表（）；
accountsList.Add（新帐户{UserName=“jack”，Password=“111”，Group=1}）；
accountsList.Add（新帐户{UserName=“ibo”，Password=“121”，Group=2}）；
控制台。写入（“输入用户名>>”；
字符串username=Console.ReadLine（）；
控制台。写入（“输入密码>>”；
字符串密码=Console.ReadLine（）；
if（检查用户密码（帐户列表、用户名、密码））
{
列出问题=填写问题（）；
int结果=0；
for（int i=0；ix.UserName==UserName.Group）
{
继续；
}
Console.WriteLine（）；
Console.WriteLine（问题[i].问题文本）；
Console.WriteLine（“-----------------------------------”）；
书面回答（问题[i].回答列表）；
字符串answers=Console.ReadLine（）；
for（int j=0；j    class Answer
    {
        public string AnswerText { get; set; }
        public bool IsCorrect { get; set; }
        public string AcceptableLetter { get; set; }
    }

List<Account> accountsList = new List<Account>();
accountsList.Add(new Account { UserName = "jack", Password = "111", Order = 1 });
accountsList.Add(new Account { UserName = "ibo", Password = "121", Order = 2 });

    private static bool CheckUserPassword(List<Account> accountsList, string username, string password)
    {
        foreach (Account account in accountsList)
        {
            if (account.UserName == username)
            {
                if (account.Password == password)
                {
                    Console.WriteLine("welcome " + account.UserName);
                    return true;
                }
                else
                {
                    Console.WriteLine("invalid access");
                    return false;
                }
            }
        }
        return false;
    }

    private static List<Question> FillQuestions()
    {
        List<Question> questionList = new List<Question>();
        List<Answer> answerList = new List<Answer>();

        answerList.Add(new Answer { AnswerText = "Ankara", IsCorrect = true, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Istambul", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Izmir", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Türkiyenin baskenti neresidir?", AnswersList = answerList });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "ismet", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Atatürk", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Ali", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Baskomutan kim?", AnswersList = answerList });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "2", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "4", IsCorrect = true, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "2 kere 2?", AnswersList = answerList });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1912", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "1914", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "1915", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "When did the world war 1 start?", AnswersList = answerList });

        return questionList;
    }

    class Question
    {
        public string QuestionText { get; set; }
        public List<Answer> AnswersList { get; set; }
        // added property
        public int DesiredGroup { get; set; }
    }

 if (questions[i].DesiredGroup == accountsList.Find(x => x.UserName == username).Group)
 {
    continue;
 }

static void Main(string[] args)
    {
        List<Account> accountsList = new List<Account>();
        accountsList.Add(new Account { UserName = "jack", Password = "111", Group = 1 });
        accountsList.Add(new Account { UserName = "ibo", Password = "121", Group = 2 });

        Console.Write("enter username >> ");
        string username = Console.ReadLine();
        Console.Write("enter password >> ");
        string password = Console.ReadLine();

        if (CheckUserPassword(accountsList, username, password))
        {
            List<Question> questions = FillQuestions();

            int result = 0;

            for (int i = 0; i < questions.Count; i++)
            {
                if (questions[i].DesiredGroup == accountsList.Find(x => x.UserName == username).Group)
                {
                    continue;
                }
                Console.WriteLine();
                Console.WriteLine(questions[i].QuestionText);
                Console.WriteLine("--------------------------");

                WriteAnswers(questions[i].AnswersList);

                string answers = Console.ReadLine();
                for (int j = 0; j < questions[i].AnswersList.Count; j++)
                {
                    if (questions[i].AnswersList[j].AcceptableLetter == answers)
                    {
                        if (questions[i].AnswersList[j].IsCorrect)
                        {
                            Console.WriteLine(questions[i].AnswersList[j].AcceptableLetter + " is correct");
                            result += 10;
                        }
                        else
                        {
                            Console.WriteLine(questions[i].AnswersList[j].AcceptableLetter + " is incorrect");
                        }
                    }
                }
            }

            if (result < 15)
            {
                Console.WriteLine("failed");
            }
            else
            {
                Console.WriteLine("congrats");
            }
        }

        Console.Read();

    }

    private static void WriteAnswers(List<Answer> answersList)
    {
        char[] alphabetLetters = { 'a', 'b', 'c' };
        for (int i = 0; i < answersList.Count; i++)
        {
            Console.WriteLine(alphabetLetters[i] + ") " + answersList[i].AnswerText);
        }
    }

    private static List<Question> FillQuestions()
    {
        List<Question> questionList = new List<Question>();
        List<Answer> answerList = new List<Answer>();

        answerList.Add(new Answer { AnswerText = "Ankara", IsCorrect = true, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Istambul", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Izmir", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Türkiyenin baskenti neresidir?", AnswersList = answerList, DesiredGroup = 1 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "ismet", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "Atatürk", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "Ali", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "Baskomutan kim?", AnswersList = answerList, DesiredGroup = 1 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "2", IsCorrect = false, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "4", IsCorrect = true, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "2 kere 2?", AnswersList = answerList, DesiredGroup = 2 });

        answerList = new List<Answer>();
        answerList.Add(new Answer { AnswerText = "1912", IsCorrect = false, AcceptableLetter = "a" });
        answerList.Add(new Answer { AnswerText = "1914", IsCorrect = true, AcceptableLetter = "b" });
        answerList.Add(new Answer { AnswerText = "1915", IsCorrect = false, AcceptableLetter = "c" });
        questionList.Add(new Question { QuestionText = "When did the world war 1 start?", AnswersList = answerList, DesiredGroup = 2 });

        return questionList;
    }

    private static bool CheckUserPassword(List<Account> accountsList, string username, string password)
    {
        foreach (Account account in accountsList)
        {
            if (account.UserName == username)
            {
                if (account.Password == password)
                {
                    Console.WriteLine("welcome " + account.UserName);
                    return true;
                }
                else
                {
                    Console.WriteLine("invalid access");
                    return false;
                }
            }
        }
        return false;
    }

    class Account
    {
        public string UserName { get; set; }
        public string Password { get; set; }
        public int Group { get; set; }
    }

    class Question
    {
        public string QuestionText { get; set; }
        public List<Answer> AnswersList { get; set; }
        public int DesiredGroup { get; set; }
    }

    class Answer
    {
        public string AnswerText { get; set; }
        public bool IsCorrect { get; set; }
        public string AcceptableLetter { get; set; }
    }

public class QuestionsByAccountProvider
{
    Question[] GetQuestionsForAccount(Account account)
    {
        // Put your code for providing questions here.
    }
}

var questionProvider = new QuestionsByAccountProvider();
var questions = questionProvider.GetQuestions(account);