为什么这个数组出界了？

Question

class Program
{
    static void Main(string[] args)
    {
        string[] deck = {"1♥","2♥","3♥","4♥","5♥","6♥","7♥","8♥","9♥","10♥","11♥","12♥","13♥",
                     "1♦","2♦","3♦","4♦","5♦","6♦","7♦","8♦","9♦","10♦","11♦","12♦","13♦",
                     "1♣","2♣","3♣","4♣","5♣","6♣","7♣","8♣","9♣","10♣","11♣","12♣","13♣",
                     "1♠","2♠","3♠","4♠","5♠","6♠","7♠","8♠","9♠","10♠","11♠","12♠","13♠"};

        string[] player = new string[26];
        string[] computer = new string[26];

        deck = Shuffle(deck);

        foreach (string d in deck)
        {
            Console.WriteLine(d);
        }

        Console.WriteLine(deck.Length);

        for (int i = 0; i < 26; i++)
        {
            player[i] = deck[i];
            Console.WriteLine(player[i]);
        }

        for (int j = 26; j < 52; j++)
        {
            computer[j] = deck[j];
            Console.WriteLine(computer[j]);
        }


    }

    static string[] Shuffle(string[] deck)
    {
        Random r = new Random();

        for (int i = deck.Length; i > 0; i--)
        {
            int j = r.Next(i);
            string k = deck[j];
            deck[j] = deck[i - 1];
            deck[i - 1] = k;
        }
        return deck;
    }

}

它将把牌阵的一半分配给玩家和计算机（玩家得到前半部分，计算机得到后半部分）。现在这是先洗牌，所以是的，这似乎是公平的。

我得到的出界错误是这一行：

computer[j] = deck[j];

Answer 1

您需要从0开始索引computer，而不是从26开始：

for (int j = 26; j < 52; j++)
{
    computer[j - 26] = deck[j];
    Console.WriteLine(computer[j - 26]);
}

或者，偏移deck索引：

for (int i = 0; i < 26; i++)
{
    computer[i] = deck[i + 26];
    Console.WriteLine(computer[i]);
}

如果您不需要打印初始卡片,则可以使用LINQ更简洁地实现这一点：

player = deck.Take(26).ToArray();
computer = deck.Skip(26).ToArray();