在这种情况下，我如何在没有重复的情况下显示结果？:)

Question

在婴儿级别描述它，我是初学者......static void Main(string[] args){    string[] Names = { "Erik", "Levente", "Noel", "Áron", "Krisztián", "Kristóf", "Bence", "Roland", "Máté", "László", "Bálint" ,    "Regina", "Brigitta", "Gréta", "Hédi", "Hanna", "Boglárka", "Jázmin", "Réka", "Alexandra", "Rebeka", "Lili", "Luca", "Zsófi"};              List<string> alreadyUsed = new List<string>();    Random r = new Random();    while (alreadyUsed.Count < Names.Length)    {        int index = r.Next(0, Names.Length);        if (!alreadyUsed.Contains(Names[index]))            alreadyUsed.Add(Names[index]);        Console.WriteLine("The 1st Winner is:  " + Names[r.Next(0, Names.Length - 1)]);    }    Console.ReadKey(true);}

Answer 1

如果您只想显示没有重复的结果，请尝试：

while (alreadyUsed.Count < Names.Length)

{

    int index = r.Next(0, Names.Length);

    if (!alreadyUsed.Contains(Names[index]))

    {

        alreadyUsed.Add(Names[index]);

        Console.WriteLine("The 1st Winner is:  " + Names[index]);

    }

}

请注意，在Console.WriteLine我使用当前添加的项目Names[index]而不是Names[r.Next(0, Names.Length - 1)]

Answer 2

也许这个版本增加了一些可读性：

while (alreadyUsed.Count < Names.Length)

{

    var notUsedYet = Names.Except(alreadyUsed).ToArray();

    var index = r.Next(0, notUsedYet.Length);

    alreadyUsed.Add(notUsedYet[index]);

    Console.WriteLine("The 1st Winner is:  " + notUsedYet[index]);

}