python五子棋代码

以下是一个简单的 Python 五子棋代码示例：

import numpy as np

BOARD_SIZE = 15

class Board:
    def __init__(self):
        self.board = np.zeros((BOARD_SIZE, BOARD_SIZE), dtype=np.int8)
        self.current_player = 1
        self.winner = None

    def place(self, row, col):
        if self.board[row][col] != 0:
            return False
        self.board[row][col] = self.current_player
        self.check_win(row, col)
        self.current_player = 3 - self.current_player
        return True

    def check_win(self, row, col):
        directions = [(0, 1), (1, 0), (1, 1), (1, -1)]
        for dx, dy in directions:
            count = 1
            r, c = row, col
            while count < 5 and 0 <= r+dx < BOARD_SIZE and 0 <= c+dy < BOARD_SIZE and self.board[r+dx][c+dy] == self.current_player:
                count += 1
                r += dx
                c += dy
            r, c = row, col
            while count < 5 and 0 <= r-dx < BOARD_SIZE and 0 <= c-dy < BOARD_SIZE and self.board[r-dx][c-dy] == self.current_player:
                count += 1
                r -= dx
                c -= dy
            if count >= 5:
                self.winner = self.current_player

    def __str__(self):
        result = "   "
        for i in range(BOARD_SIZE):
            result += chr(ord('a') + i) + " "
        result += "\n"
        for i in range(BOARD_SIZE):
            result += "{:2d}".format(i+1)
            for j in range(BOARD_SIZE):
                if self.board[i][j] == 0:
                    result += " ."
                elif self.board[i][j] == 1:
                    result += " x"
                else:
                    result += " o"
            result += "\n"
        return result

board = Board()

while board.winner is None:
    print(board)
    move = input("Player {}'s turn. Enter move (e.g. b3): ".format(board.current_player))
    col = ord(move[0]) - ord('a')
    row = int(move[1:]) - 1
    if not board.place(row, col):
        print("Invalid move. Try again.")
print(board)
print("Player {} wins!".format(board.winner))

这段代码实现了一个简单的五子棋游戏。运行后，你可以使用命令行输入坐标来下棋。例如，输入 `b3` 表示在第二列第三行下一枚棋子。游戏会自动检查胜利条件并输出胜者。