用winform写一个五子棋游戏

好的，以下是用 Winform 写的五子棋游戏示例代码：

1. 首先，需要设计游戏界面。可以在窗体上添加一个 PictureBox 控件作为游戏棋盘，再添加一些按钮控件用于开始游戏、重新开始、悔棋等操作。

2. 在 PictureBox 的 Paint 事件中绘制游戏棋盘，可以使用 Graphics 绘图类。

3. 在 PictureBox 的 MouseClick 事件中处理玩家下棋，可以根据鼠标点击的位置计算出对应的棋盘坐标，然后在棋盘上绘制棋子。

4. 设计一个 Chess 类表示棋子，包括颜色、位置等属性。

5. 实现游戏规则，判断是否有玩家胜利或者平局。

下面是示例代码：

public partial class Form1 : Form
{
    private const int ChessboardSize = 15; // 棋盘大小
    private const int ChessSize = 30; // 棋子大小
    private const int ChessboardMargin = 20; // 棋盘边距
    private const int ChessboardPadding = 15; // 棋盘线条粗细
    private Chess[,] chessboard = new Chess[ChessboardSize, ChessboardSize]; // 棋盘
    private bool isBlackTurn = true; // 黑棋先手

    public Form1()
    {
        InitializeComponent();
        ResetChessboard();
    }

    // 绘制棋盘
    private void pictureBox1_Paint(object sender, PaintEventArgs e)
    {
        Graphics g = e.Graphics;
        Pen pen = new Pen(Color.Black, ChessboardPadding);
        Brush brush = Brushes.Black;

        // 绘制横线
        for (int i = 0; i < ChessboardSize; i++)
        {
            int y = ChessboardMargin + i * ChessSize;
            g.DrawLine(pen, ChessboardMargin, y, ChessboardMargin + ChessSize * (ChessboardSize - 1), y);
        }

        // 绘制竖线
        for (int i = 0; i < ChessboardSize; i++)
        {
            int x = ChessboardMargin + i * ChessSize;
            g.DrawLine(pen, x, ChessboardMargin, x, ChessboardMargin + ChessSize * (ChessboardSize - 1));
        }

        // 绘制棋子
        foreach (Chess chess in chessboard)
        {
            if (chess != null)
            {
                brush = chess.IsBlack ? Brushes.Black : Brushes.White;
                g.FillEllipse(brush, ChessboardMargin + chess.X * ChessSize - ChessSize / 2, ChessboardMargin + chess.Y * ChessSize - ChessSize / 2, ChessSize, ChessSize);
            }
        }
    }

    // 处理玩家下棋
    private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
    {
        if (e.Button != MouseButtons.Left) return;

        int x = (e.X - ChessboardMargin + ChessSize / 2) / ChessSize;
        int y = (e.Y - ChessboardMargin + ChessSize / 2) / ChessSize;

        if (x < 0 || x >= ChessboardSize || y < 0 || y >= ChessboardSize) return;

        if (chessboard[x, y] != null) return;

        Chess chess = new Chess(isBlackTurn, x, y);
        chessboard[x, y] = chess;
        isBlackTurn = !isBlackTurn;

        pictureBox1.Invalidate();

        if (CheckWin(chess))
        {
            string message = (chess.IsBlack ? "黑棋" : "白棋") + "胜利！";
            MessageBox.Show(message);
            ResetChessboard();
        }
        else if (CheckDraw())
        {
            MessageBox.Show("平局！");
            ResetChessboard();
        }
    }

    // 判断是否有玩家胜利
    private bool CheckWin(Chess chess)
    {
        int x = chess.X;
        int y = chess.Y;

        // 判断横向
        int count = 1;
        for (int i = x - 1; i >= 0 && chessboard[i, y] != null && chessboard[i, y].IsBlack == chess.IsBlack; i--)
        {
            count++;
        }
        for (int i = x + 1; i < ChessboardSize && chessboard[i, y] != null && chessboard[i, y].IsBlack == chess.IsBlack; i++)
        {
            count++;
        }
        if (count >= 5) return true;

        // 判断纵向
        count = 1;
        for (int i = y - 1; i >= 0 && chessboard[x, i] != null && chessboard[x, i].IsBlack == chess.IsBlack; i--)
        {
            count++;
        }
        for (int i = y + 1; i < ChessboardSize && chessboard[x, i] != null && chessboard[x, i].IsBlack == chess.IsBlack; i++)
        {
            count++;
        }
        if (count >= 5) return true;

        // 判断左斜向
        count = 1;
        for (int i = x - 1, j = y - 1; i >= 0 && j >= 0 && chessboard[i, j] != null && chessboard[i, j].IsBlack == chess.IsBlack; i--, j--)
        {
            count++;
        }
        for (int i = x + 1, j = y + 1; i < ChessboardSize && j < ChessboardSize && chessboard[i, j] != null && chessboard[i, j].IsBlack == chess.IsBlack; i++, j++)
        {
            count++;
        }
        if (count >= 5) return true;

        // 判断右斜向
        count = 1;
        for (int i = x + 1, j = y - 1; i < ChessboardSize && j >= 0 && chessboard[i, j] != null && chessboard[i, j].IsBlack == chess.IsBlack; i++, j--)
        {
            count++;
        }
        for (int i = x - 1, j = y + 1; i >= 0 && j < ChessboardSize && chessboard[i, j] != null && chessboard[i, j].IsBlack == chess.IsBlack; i--, j++)
        {
            count++;
        }
        if (count >= 5) return true;

        return false;
    }

    // 判断是否平局
    private bool CheckDraw()
    {
        foreach (Chess chess in chessboard)
        {
            if (chess == null) return false;
        }
        return true;
    }

    // 重新开始游戏
    private void btnRestart_Click(object sender, EventArgs e)
    {
        ResetChessboard();
    }

    // 悔棋
    private void btnUndo_Click(object sender, EventArgs e)
    {
        // TODO: 实现悔棋
    }

    // 重置棋盘
    private void ResetChessboard()
    {
        for (int i = 0; i < ChessboardSize; i++)
        {
            for (int j = 0; j < ChessboardSize; j++)
            {
                chessboard[i, j] = null;
            }
        }
        isBlackTurn = true;
        pictureBox1.Invalidate();
    }
}

// 棋子类
public class Chess
{
    public bool IsBlack { get; set; }
    public int X { get; set; }
    public int Y { get; set; }

    public Chess(bool isBlack, int x, int y)
    {
        IsBlack = isBlack;
        X = x;
        Y = y;
    }
}

这是一个简单的五子棋游戏示例，可以根据需求进行扩展和优化。