请用c++给我写一个五子棋游戏的程序

好的，以下是一个简单的五子棋游戏程序示例，希望对你有帮助：

#include <iostream>
using namespace std;

const int SIZE = 15; // 棋盘大小
const int BLACK = 1; // 黑子
const int WHITE = 2; // 白子

int board[SIZE][SIZE] = {0}; // 棋盘，0表示空，1表示黑子，2表示白子

// 初始化棋盘
void initBoard()
{
    for(int i = 0; i < SIZE; i++)
    {
        for(int j = 0; j < SIZE; j++)
        {
            board[i][j] = 0;
        }
    }
}

// 绘制棋盘
void drawBoard()
{
    cout << "   ";
    for(int i = 0; i < SIZE; i++)
    {
        cout << i << " ";
    }
    cout << endl;

    for(int i = 0; i < SIZE; i++)
    {
        cout << i << "  ";
        for(int j = 0; j < SIZE; j++)
        {
            if(board[i][j] == BLACK)
            {
                cout << "● ";
            }
            else if(board[i][j] == WHITE)
            {
                cout << "○ ";
            }
            else
            {
                cout << "+ ";
            }
        }
        cout << endl;
    }
}

// 判断是否有人获胜
bool checkWin(int player)
{
    // 横向判断
    for(int i = 0; i < SIZE; i++)
    {
        for(int j = 0; j < SIZE - 4; j++)
        {
            if(board[i][j] == player && board[i][j + 1] == player && board[i][j + 2] == player && board[i][j + 3] == player && board[i][j + 4] == player)
            {
                return true;
            }
        }
    }

    // 纵向判断
    for(int i = 0; i < SIZE - 4; i++)
    {
        for(int j = 0; j < SIZE; j++)
        {
            if(board[i][j] == player && board[i + 1][j] == player && board[i + 2][j] == player && board[i + 3][j] == player && board[i + 4][j] == player)
            {
                return true;
            }
        }
    }

    // 左上到右下斜向判断
    for(int i = 0; i < SIZE - 4; i++)
    {
        for(int j = 0; j < SIZE - 4; j++)
        {
            if(board[i][j] == player && board[i + 1][j + 1] == player && board[i + 2][j + 2] == player && board[i + 3][j + 3] == player && board[i + 4][j + 4] == player)
            {
                return true;
            }
        }
    }

    // 右上到左下斜向判断
    for(int i = 4; i < SIZE; i++)
    {
        for(int j = 0; j < SIZE - 4; j++)
        {
            if(board[i][j] == player && board[i - 1][j + 1] == player && board[i - 2][j + 2] == player && board[i - 3][j + 3] == player && board[i - 4][j + 4] == player)
            {
                return true;
            }
        }
    }

    return false;
}

// 判断是否平局
bool checkTie()
{
    for(int i = 0; i < SIZE; i++)
    {
        for(int j = 0; j < SIZE; j++)
        {
            if(board[i][j] == 0)
            {
                return false;
            }
        }
    }

    return true;
}

int main()
{
    int player = BLACK; // 当前玩家，默认黑子先行

    initBoard(); // 初始化棋盘

    while(true)
    {
        drawBoard(); // 绘制棋盘

        int x, y;
        cout << "请 " << (player == BLACK ? "黑" : "白") << " 子下棋（输入x，y坐标，以空格分隔）：" << endl;
        cin >> x >> y;

        if(x < 0 || x >= SIZE || y < 0 || y >= SIZE || board[x][y] != 0)
        {
            cout << "输入无效，请重新输入！" << endl;
            continue;
        }

        board[x][y] = player; // 下棋

        if(checkWin(player)) // 判断是否获胜
        {
            cout << (player == BLACK ? "黑" : "白") << "子获胜！" << endl;
            break;
        }

        if(checkTie()) // 判断是否平局
        {
            cout << "平局！" << endl;
            break;
        }

        player = (player == BLACK ? WHITE : BLACK); // 切换玩家
    }

    return 0;
}

这个程序只是一个简单的示例，可能还有一些不足之处，希望能够帮到你。