c++黑白棋游戏，可以选择人机，玩家两种玩法

好的，那么我们可以使用 C++ 编写一个黑白棋游戏，让玩家可以选择人机或者玩家两种玩法。下面是一个简单的实现过程：

1. 首先，我们需要定义棋盘的大小和棋子的种类（黑色、白色、空白）。

const int BOARD_SIZE = 8;
const char BLACK = 'X';
const char WHITE = 'O';
const char EMPTY = '-';

2. 然后，我们需要定义棋盘的数据结构和初始化函数。

char board[BOARD_SIZE][BOARD_SIZE];

void init_board() {
    for (int i = 0; i < BOARD_SIZE; i++) {
        for (int j = 0; j < BOARD_SIZE; j++) {
            if ((i == BOARD_SIZE / 2 - 1 && j == BOARD_SIZE / 2 - 1) || (i == BOARD_SIZE / 2 && j == BOARD_SIZE / 2)) {
                board[i][j] = WHITE;
            } else if ((i == BOARD_SIZE / 2 - 1 && j == BOARD_SIZE / 2) || (i == BOARD_SIZE / 2 && j == BOARD_SIZE / 2 - 1)) {
                board[i][j] = BLACK;
            } else {
                board[i][j] = EMPTY;
            }
        }
    }
}

3. 接下来，我们需要定义一个函数来显示棋盘。

void show_board() {
    cout << "  ";
    for (int i = 0; i < BOARD_SIZE; i++) {
        cout << i << " ";
    }
    cout << endl;

    for (int i = 0; i < BOARD_SIZE; i++) {
        cout << i << " ";
        for (int j = 0; j < BOARD_SIZE; j++) {
            cout << board[i][j] << " ";
        }
        cout << endl;
    }
}

4. 然后，我们需要实现一个函数来检查某个位置是否可以落子。

bool is_valid_move(int row, int col, char player) {
    if (row < 0 || row >= BOARD_SIZE || col < 0 || col >= BOARD_SIZE) {
        return false;
    }
    if (board[row][col] != EMPTY) {
        return false;
    }
    char opponent = (player == BLACK) ? WHITE : BLACK;
    bool found = false;
    for (int i = -1; i <= 1; i++) {
        for (int j = -1; j <= 1; j++) {
            if (i == 0 && j == 0) {
                continue;
            }
            int r = row + i;
            int c = col + j;
            if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                continue;
            }
            if (board[r][c] == opponent) {
                while (true) {
                    r += i;
                    c += j;
                    if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                        break;
                    }
                    if (board[r][c] == EMPTY) {
                        break;
                    }
                    if (board[r][c] == player) {
                        found = true;
                        break;
                    }
                }
            }
        }
    }
    return found;
}

5. 接着，我们需要实现一个函数来落子。

void make_move(int row, int col, char player) {
    board[row][col] = player;
    char opponent = (player == BLACK) ? WHITE : BLACK;
    for (int i = -1; i <= 1; i++) {
        for (int j = -1; j <= 1; j++) {
            if (i == 0 && j == 0) {
                continue;
            }
            int r = row + i;
            int c = col + j;
            if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                continue;
            }
            if (board[r][c] == opponent) {
                bool found = false;
                while (true) {
                    r += i;
                    c += j;
                    if (r < 0 || r >= BOARD_SIZE || c < 0 || c >= BOARD_SIZE) {
                        break;
                    }
                    if (board[r][c] == EMPTY) {
                        break;
                    }
                    if (board[r][c] == player) {
                        found = true;
                        break;
                    }
                }
                if (found) {
                    r = row + i;
                    c = col + j;
                    while (board[r][c] == opponent) {
                        board[r][c] = player;
                        r += i;
                        c += j;
                    }
                }
            }
        }
    }
}

6. 然后，我们需要实现一个函数来判断游戏是否结束。

bool is_game_over() {
    int black_count = 0;
    int white_count = 0;
    for (int i = 0; i < BOARD_SIZE; i++) {
        for (int j = 0; j < BOARD_SIZE; j++) {
            if (board[i][j] == BLACK) {
                black_count++;
            } else if (board[i][j] == WHITE) {
                white_count++;
            }
        }
    }
    return (black_count + white_count == BOARD_SIZE * BOARD_SIZE) || (black_count == 0) || (white_count == 0);
}

7. 最后，我们需要实现主函数，让玩家可以选择人机或者玩家两种玩法。

int main() {
    init_board();
    show_board();

    char player1, player2;
    cout << "Choose player 1 (B for black, W for white): ";
    cin >> player1;
    player2 = (player1 == BLACK) ? WHITE : BLACK;

    while (!is_game_over()) {
        bool found = false;
        if (player1 == BLACK) {
            for (int i = 0; i < BOARD_SIZE; i++) {
                for (int j = 0; j < BOARD_SIZE; j++) {
                    if (is_valid_move(i, j, player1)) {
                        found = true;
                        break;
                    }
                }
                if (found) {
                    break;
                }
            }
            if (found) {
                int row, col;
                cout << "Player 1's turn (black)" << endl;
                cout << "Enter row and col: ";
                cin >> row >> col;
                if (is_valid_move(row, col, player1)) {
                    make_move(row, col, player1);
                    show_board();
                    player1 = player2;
                    player2 = (player1 == BLACK) ? WHITE : BLACK;
                } else {
                    cout << "Invalid move!" << endl;
                }
            } else {
                cout << "Player 1 (black) has no valid move. Skipping turn." << endl;
                player1 = player2;
                player2 = (player1 == BLACK) ? WHITE : BLACK;
            }
        } else {
            // AI code here
        }
    }

    int black_count = 0;
    int white_count = 0;
    for (int i = 0; i < BOARD_SIZE; i++) {
        for (int j = 0; j < BOARD_SIZE; j++) {
            if (board[i][j] == BLACK) {
                black_count++;
            } else if (board[i][j] == WHITE) {
                white_count++;
            }
        }
    }
    if (black_count > white_count) {
        cout << "Player 1 (black) wins!" << endl;
    } else if (white_count > black_count) {
        cout << "Player 2 (white) wins!" << endl;
    } else {
        cout << "It's a tie!" << endl;
    }

    return 0;
}

这样，我们就完成了一个简单的黑白棋游戏，让玩家可以选择人机或者玩家两种玩法。如果你想实现 AI 玩家的功能，可以参考 Minimax 算法和 Alpha-Beta 剪枝算法的实现。