c# - 为什么 String.Equals 不起作用？

Question

我和我的 friend 正在开发一个简单的知识问答控制台应用程序，以尝试学习编写 C# 代码。我们已经让随机问题生成器正常工作，我们可以接受输入。我们遇到了一个问题，无论我们输入什么，代码总是说这是错误的答案。我们希望它像正常的琐事一样说这是正确答案或错误答案。为了检查答案是否正确，我们使用 String.Equals 来检查答案是否与存储在数组中的答案相匹配。我们很好奇我们在这里做错了什么以及如何使 if 语句正常工作。

static void Main(string[] args)
    {
        //Random number generator
        Random rnd = new Random();
        int randInt = rnd.Next(0, 9);

        //Questions array Question/Answer
        string[,] array2D = new string[10, 2] {
            { "Mario Kart is a video game series publish by which company?", "Nintendo" },
            { "What was the first console video game that allowed the game to be saved?", "The Legend of Zelda" },
            { "The Connecticut Leather Company later became what toy company that was popular in the 1980s for its Cabbage Patch Kids and video game consoles?", "Coleco" },
            { "Nintendo is a consumer electronics and video game company founded in what country?", "Japan" },
            { "The first person shooter video game Doom was first released in what year?", "1993" },
            { "In what year did Nintendo release its first game console in North America?", "1985" },
            { "In the world of video games, what does NES stand for?", "Nintendo Entertainment System" },
            { "In what year was the Nintendo 64 officially released?", "1996" },
            { "What was the most popular video game in the year 1999?", "Doom" },
            { "If you have any kind of console known to mankind, what will your mother call it no matter what?", "A Nintendo" } };

        //printing the question
        System.Console.WriteLine(array2D[randInt, 0]);
        System.Console.ReadKey();

        //taking user input
        string Answer = Console.ReadLine();

        //checking to see if the answer is correct
        if (Answer.Equals(array2D[randInt, 1]))
        {
            //the console exclamation for the right answer given in any scenario.
            Console.WriteLine("Correct Answer! Good job!");
            Console.ReadKey();
        }
        else
        {
            //the console exlamation for the incorrect answer in any given scnario
            Console.WriteLine("Aw man! You got it wrong! Better luck next time :(");
            Console.WriteLine("The correct answer was {0}", array2D[randInt, 1]);
            Console.ReadKey();
        }

    }

Answer 1

只需删除上面的System.Console.ReadKey()；

//Random number generator
        Random rnd = new Random();
        int randInt = rnd.Next(0, 9);

        //Questions array Question/Answer
        string[,] array2D = new string[10, 2] {
        { "Mario Kart is a video game series publish by which company?", "Nintendo" },
        { "What was the first console video game that allowed the game to be saved?", "The Legend of Zelda" },
        { "The Connecticut Leather Company later became what toy company that was popular in the 1980s for its Cabbage Patch Kids and video game consoles?", "Coleco" },
        { "Nintendo is a consumer electronics and video game company founded in what country?", "Japan" },
        { "The first person shooter video game Doom was first released in what year?", "1993" },
        { "In what year did Nintendo release its first game console in North America?", "1985" },
        { "In the world of video games, what does NES stand for?", "Nintendo Entertainment System" },
        { "In what year was the Nintendo 64 officially released?", "1996" },
        { "What was the most popular video game in the year 1999?", "Doom" },
        { "If you have any kind of console known to mankind, what will your mother call it no matter what?", "A Nintendo" } };

        //printing the question
        System.Console.WriteLine(array2D[randInt, 0]);
        //System.Console.ReadKey(); Removed

        //taking user input
        string Answer = Console.ReadLine();

        //checking to see if the answer is correct
        if (Answer.Equals(array2D[randInt, 1]))
        {
            //the console exclamation for the right answer given in any scenario.
            Console.WriteLine("Correct Answer! Good job!");
            Console.ReadKey();
        }
        else
        {
            //the console exlamation for the incorrect answer in any given scnario
            Console.WriteLine("Aw man! You got it wrong! Better luck next time :(");
            Console.WriteLine("The correct answer was {0}", array2D[randInt, 1]);
            Console.ReadKey();
        }