用Python写五子棋的代码

好的，下面是一个简单的五子棋代码示例：

import numpy as np

# 定义棋盘大小
BOARD_SIZE = 15

class Board:
    """五子棋棋盘类"""
    def __init__(self):
        self.board = np.zeros((BOARD_SIZE, BOARD_SIZE), dtype=int) # 初始化棋盘
        self.player = 1 # 当前玩家，1为黑方，2为白方
    
    def move(self, x, y):
        """在棋盘上落子"""
        if self.board[x][y] != 0:
            return False # 该位置已经有棋子
        self.board[x][y] = self.player # 落子
        return True
    
    def switch_player(self):
        """切换玩家"""
        if self.player == 1:
            self.player = 2
        else:
            self.player = 1
    
    def check_win(self, x, y):
        """检查是否获胜"""
        def check_direction(dx, dy):
            """检查某个方向是否连成五子"""
            count = 1 # 计数器
            i, j = x, y
            while i + dx >= 0 and i + dx < BOARD_SIZE and j + dy >= 0 and j + dy < BOARD_SIZE and self.board[i + dx][j + dy] == self.player:
                count += 1
                i += dx
                j += dy
            i, j = x, y
            while i - dx >= 0 and i - dx < BOARD_SIZE and j - dy >= 0 and j - dy < BOARD_SIZE and self.board[i - dx][j - dy] == self.player:
                count += 1
                i -= dx
                j -= dy
            return count >= 5
        
        # 检查四个方向是否连成五子
        if check_direction(0, 1) or check_direction(1, 0) or check_direction(1, 1) or check_direction(1, -1):
            return True
        else:
            return False
    
    def show(self):
        """显示棋盘"""
        print("  ", end="")
        for i in range(BOARD_SIZE):
            print(chr(ord('a') + i), end=" ")
        print()
        for i in range(BOARD_SIZE):
            print(i + 1, end=" ")
            for j in range(BOARD_SIZE):
                if self.board[i][j] == 0:
                    print("+", end=" ")
                elif self.board[i][j] == 1:
                    print("*", end=" ")
                else:
                    print("O", end=" ")
            print()
            
def main():
    board = Board()
    while True:
        board.show()
        x = input("请输入落子位置，如a1：")
        y = int(x[1:]) - 1
        x = ord(x[0]) - ord('a')
        if not board.move(y, x):
            print("该位置已有棋子，请重新输入！")
            continue
        if board.check_win(y, x):
            board.show()
            print("恭喜玩家{}获胜！".format(board.player))
            break
        board.switch_player()
    
if __name__ == '__main__':
    main()

这个代码实现了一个简单的五子棋游戏，玩家通过输入坐标来在棋盘上落子，每落完一次子就切换玩家。当某个玩家在横、竖、斜方向上连成五子时，游戏结束，该玩家获胜。