在 C# 中生成不重复的字符串

Question

目前我正在.net Core 3.1 中编写一个基于控制台的程序。该程序的目标是让用户输入一个字符串，然后控制台将尝试猜测它。示例：

What shall I guess: string
Ok Guessing String...

Code Cracked :) Your code is: string

无论如何，我在创建程序时遇到了问题。我创建的随机生成的字符串非常频繁地重复，如果代码更长，问题就会成倍增加。

我用它来生成随机字符串

string passw = Console.Readline();

for (int i = 0; i > -1; i++)
            {
                var chars = "abcdefghijklmnopqrstuvwxyz";
                var stringChars = new char[passw.Length];

                for (int a = 0; a < passw.Length; a++)
                {
                    stringChars[a] = chars[rnd.Next(chars.Length)];
                }

                var finalstring = new String(stringChars);
                Console.WriteLine(finalstring);

                if (finalstring== passw)
                {
                    Console.WriteLine("");
                    Console.WriteLine("Password Guessed: " + finalstring);
                    Console.WriteLine("It took a total of: " + i + " guesses!");
                    Environment.Exit(0);
                }
            }

我怎样才能实现目标？我看到了一些关于列表和类似事物的东西，但想知道是否有更好的方法来获得我正在寻找的结果。谢谢！如果需要，我可以澄清任何事情！

Answer 1

这是一个猜词演示，采用“好莱坞”风格：

最终输出：

因为您应该在“破解”密码时始终显示您的进度......并通过猜测随机排序的字母顺序来“破解”它？

制作者：

static void Main(string[] args)
{
    string guess;
    char response;
    int tries = 0;            
    Random rnd = new Random();
    var chars = "abcdefghijklmnopqrstuvwxyz".ToCharArray();

    do
    {
        Console.Clear();
        Console.Write("Enter a word with no characters repeated in it: ");
        string wordToGuess = Console.ReadLine().ToLower();

        var letters = wordToGuess.ToCharArray().Distinct();
        if (letters.All(c => char.IsLetter(c)) && letters.Count() == wordToGuess.Length && wordToGuess.Length > 0)
        {
            Console.WriteLine("Trying to guess your word...");
            int row = Console.CursorTop;
            Console.CursorVisible = false;
            tries = 0;
            do
            {
                tries++;
                var shuffled = (chars.OrderBy(c => rnd.Next())).ToArray();
                guess = new String(shuffled.Take(wordToGuess.Length).ToArray());
                Console.SetCursorPosition(0, row);
                Console.WriteLine("chars = " + new string(shuffled));
                Console.Write("Guess: {0}, Tries: {1}", guess, tries.ToString("N0"));
            } while (guess != wordToGuess);
            Console.WriteLine();
            Console.WriteLine("It took me {0} tries to guess your word: {1}", tries.ToString("N0"), guess);
        }
        else
        {
            Console.WriteLine("Invalid word to guess!");
        }
       
        Console.CursorVisible = true;
        Console.Write("Play again? Y/N: ");
        response = Console.ReadKey().KeyChar;
        Console.WriteLine();
    } while (response == 'y' || response == 'Y');
                
    Console.Write("Press Enter to Quit");
    Console.ReadLine();
}