c++怎么写井字棋游戏

以下是一个简单的 C++ 代码示例，用于实现井字棋游戏：

#include <iostream>
using namespace std;

char board[3][3] = {{' ', ' ', ' '}, {' ', ' ', ' '}, {' ', ' ', ' '}};
char player = 'X';

void drawBoard() {
    cout << "  1 2 3" << endl;
    for (int i = 0; i < 3; i++) {
        cout << i + 1 << " ";
        for (int j = 0; j < 3; j++) {
            cout << board[i][j];
            if (j < 2) {
                cout << "|";
            }
        }
        cout << endl;
        if (i < 2) {
            cout << "  -----" << endl;
        }
    }
}

bool isValidMove(int row, int col) {
    if (row < 0 || row > 2 || col < 0 || col > 2) {
        return false;
    }
    if (board[row][col] != ' ') {
        return false;
    }
    return true;
}

bool hasWon(char player) {
    for (int i = 0; i < 3; i++) {
        if (board[i][0] == player && board[i][1] == player && board[i][2] == player) {
            return true;
        }
        if (board[0][i] == player && board[1][i] == player && board[2][i] == player) {
            return true;
        }
    }
    if (board[0][0] == player && board[1][1] == player && board[2][2] == player) {
        return true;
    }
    if (board[0][2] == player && board[1][1] == player && board[2][0] == player) {
        return true;
    }
    return false;
}

int main() {
    int row, col;
    while (true) {
        drawBoard();
        cout << "Player " << player << " turn. Enter row and column: ";
        cin >> row >> col;
        if (isValidMove(row - 1, col - 1)) {
            board[row - 1][col - 1] = player;
            if (hasWon(player)) {
                cout << "Player " << player << " has won!" << endl;
                drawBoard();
                break;
            }
            if (player == 'X') {
                player = 'O';
            } else {
                player = 'X';
            }
        } else {
            cout << "Invalid move. Try again." << endl;
        }
    }
    return 0;
}

代码中的 `board` 数组表示井字棋盘，`player` 变量表示当前玩家。`drawBoard` 函数用于绘制井字棋盘，`isValidMove` 函数用于验证玩家的落子是否合法，`hasWon` 函数用于判断玩家是否获胜。主函数中通过循环实现玩家轮流落子，直到有一方获胜为止。