在嬰兒級別描述它，我是初學(xué)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);}
2 回答
繁花如伊
TA貢獻(xiàn)2012條經(jīng)驗(yàn) 獲得超12個贊
如果您只想顯示沒有重復(fù)的結(jié)果，請嘗試：
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]);
}
}
請注意，在Console.WriteLine我使用當(dāng)前添加的項(xiàng)目Names[index]而不是Names[r.Next(0, Names.Length - 1)]
茅侃侃
TA貢獻(xiàn)1842條經(jīng)驗(yàn) 獲得超22個贊
也許這個版本增加了一些可讀性：
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]);
}
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