用C语言写一个井字棋小游戏完整代码

创建一个简单的井字棋（Tic Tac Toe）游戏的C语言代码可能比较复杂，因为它涉及到用户界面交互和二维数组的操作。以下是一个基本的控制台版井字棋游戏的示例代码：

#include <stdio.h>
#define SIZE 3

// 定义游戏板结构
typedef struct {
    char board[SIZE][SIZE];
} TicTacToe;

// 清空游戏板
void clear_board(TicTacToe *game) {
    for (int i = 0; i < SIZE; i++) {
        for (int j = 0; j < SIZE; j++)
            game->board[i][j] = '\0';
    }
}

// 判断某位置是否为空
int is_empty(int row, int col, TicTacToe *game) {
    return game->board[row][col] == '\0';
}

// 打印游戏板
void print_board(const TicTacToe *game) {
    for (int i = 0; i < SIZE; i++) {
        printf("%c | %c | %c\n", game->board[i][0], game->board[i][1], game->board[i][2]);
        if (i != SIZE - 1)
            printf("---------\n");
    }
}

// 下一步操作，玩家输入坐标
void move(char player, int row, int col, TicTacToe *game) {
    if (is_empty(row, col, game)) {
        game->board[row][col] = player;
    } else {
        printf("该位置已被占用，请重新选择。\n");
        move(player, row, col, game);
    }
}

int main() {
    TicTacToe game;
    clear_board(&game);

    char player = 'X'; // 先手通常为X
    char opponent = 'O';

    while (!check_win(game.board, player) && !check_win(game.board, opponent)) { // 检查平局或胜利
        print_board(&game);
        printf("Player %c,请输入行和列(0-2): ", player);
        int row, col;
        scanf("%d %d", &row, &col);
        move(player, row, col, &game);
        if (player == 'X')
            player = 'O';
        else
            player = 'X';
    }

    // 检查结果并打印最后的游戏状态
    print_board(&game);
    return 0;
}

// 检查胜利条件（横/竖/对角线）
int check_win(char board[][SIZE], char player) {
    for (int i = 0; i < SIZE; i++) {
        if ((board[i][0] == player && board[i][1] == player && board[i][2] == player) ||
            (board[0][i] == player && board[1][i] == player && board[2][i] == player))
            return 1;
    }
    if (board[0][0] == player && board[1][1] == player && board[2][2] == player || 
        board[0][2] == player && board[1][1] == player && board[2][0] == player)
        return 1;

    // 如果没有胜利也没有平局，则返回0
    return 0;
}

请注意，这只是一个基础版本，实际应用中可能需要添加错误处理、循环结束条件判断以及用户交互优化等功能。运行这个代码需要一个支持C编译器环境。