棋盘游戏的 int 数组

Question

        int[,] board = 
        {
            {0, 0, 2, 0, 0, 0, 0, 0},
            {0, 0, 0, 1, 2, 2, 0, 0},
            {0, 0, 0, 0, 1, 0, 0, 0},
            {0, 0, 0, 1, 2, 1, 0, 0},
            {0, 0, 1, 1, 2, 0, 0, 0},
            {0, 0, 0, 0, 2, 0, 0, 0},
            {0, 0, 0, 0, 2, 0, 0, 0},
            {0, 0, 0, 0, 1, 0, 0, 0},
        }; 

这是我的数组代码。我想将所有 0 显示为“”，将所有 1 显示为“X”，将所有 2 显示为“O”。我这样做是为了制作一个棋盘游戏，并希望输出看起来像这样。 Array output wanted

我尝试过创建一个名为“DisplayBoard”的方法，这就是我目前所拥有的。

static void DisplayBoard(int[,] board) {

        Write("     ");
        for (int i = 0; i < BOARD_SIZE; ++i)
        {
            Write(" {0}  ", i);
        }

        Console.WriteLine();
        Console.WriteLine("    ---------------------------------");

        for (int row = 0; row < BOARD_SIZE; row++)
        {

            Write(" {0}  |",row);
            for (int col = 0; col < BOARD_SIZE; ++col)
            {
                Console.Write(String.Format(" {0} |", board[row, col]));
            }
            Console.WriteLine();
            Console.WriteLine("    ---------------------------------");

        }
        WriteLine();
    }

Answer 1

你可以像这样定义一个局部函数：

static string getMark(int n) => n switch {
    1 => "X",
    2 => "O",
    _ => " "
};

并替换你的这一行

Console.Write(String.Format(" {0} |", board[row, col]));

与

Console.Write($" {getMark(board[row, col])} |");

Answer 2

让我们概括问题并将任何board转换为string：

private static string BoardToString(int[,] board) {
  if (null == board || board.GetLength(0) <= 0 || board.GetLength(1) <= 0)
    return "";

  StringBuilder sb = new StringBuilder();

  string marks = " XO";
  string line = "  " + new string('-', board.GetLength(1) * 4 - 1);

  sb.Append(line);

  for (int r = 0; r < board.GetLength(0); ++r) {
    sb.AppendLine();

    for (int c = 0; c < board.GetLength(1); ++c) {
      sb.Append(" | ");
      sb.Append(marks[board[r, c]]);
    }

    sb.AppendLine(" | ");
    sb.Append(line);
  }

  return sb.ToString();
}

那你就可以放

   static void DisplayBoard(int[,] board) {  
     Console.Write(BoardToString(board)); 
   }  

演示：

  int[,] board = {
    {0, 0, 2, 0, 0, 0, 0, 0},
    {0, 0, 0, 1, 2, 2, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
    {0, 0, 0, 1, 2, 1, 0, 0},
    {0, 0, 1, 1, 2, 0, 0, 0},
    {0, 0, 0, 0, 2, 0, 0, 0},
    {0, 0, 0, 0, 2, 0, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
  };

  DisplayBoard(board);

结果：

  -------------------------------
 |   |   | O |   |   |   |   |   | 
  -------------------------------
 |   |   |   | X | O | O |   |   | 
  -------------------------------
 |   |   |   |   | X |   |   |   | 
  -------------------------------
 |   |   |   | X | O | X |   |   | 
  -------------------------------
 |   |   | X | X | O |   |   |   | 
  -------------------------------
 |   |   |   |   | O |   |   |   | 
  -------------------------------
 |   |   |   |   | O |   |   |   | 
  -------------------------------
 |   |   |   |   | X |   |   |   | 
  -------------------------------

Answer 3

图块将成为您程序中非常重要的对象。所以你不妨给它一个适当的类。如果你给它一个类，你就有一个自然的地方来放置将它转换为各种格式的代码。在您的情况下，您需要能够将其从整数转换为字符串或字符。

class Tile
{
    protected readonly int _value;

    public Tile(int integerValue)
    {
        if (integerValue < 0 || integerValue >= _map.Length) throw new ArgumentException("Tile value invalid");
        _value = integerValue;
    }

    public override string ToString() => ((char)this).ToString();

    static char[] _map = new char[] { ' ', 'X', 'O' }; 

    public static implicit operator char(Tile input) => _map[input._value];

    public static implicit operator Tile(int input) => new Tile(input);
}

一旦完成，剩下的逻辑就更轻了：

var board = new Tile[,]
{
    {0, 0, 2, 0, 0, 0, 0, 0},
    {0, 0, 0, 1, 2, 2, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
    {0, 0, 0, 1, 2, 1, 0, 0},
    {0, 0, 1, 1, 2, 0, 0, 0},
    {0, 0, 0, 0, 2, 0, 0, 0},
    {0, 0, 0, 0, 2, 0, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
};

for (var row = 0; row < board.GetUpperBound(0); row++)
{
    for (var column = 0; column < board.GetUpperBound(1); column++)
    {
        Console.Write("|{0}", board[row, column]);
    }
    Console.WriteLine("|");
}

输出：

| | |O| | | | |
| | | |X|O|O| |
| | | | |X| | |
| | | |X|O|X| |
| | |X|X|O| | |
| | | | |O| | |
| | | | |O| | |