Tic Tac Toe中选定位置的函数

def select_position(board, player, position):
    # 检查位置是否合法
    if position < 1 or position > 9:
        print("无效的位置，请重新选择。")
        return False

    # 检查位置是否已经被占据
    if board[position-1] != ' ':
        print("该位置已经被占据，请重新选择。")
        return False

    # 标记玩家的位置
    board[position-1] = player

    # 打印更新后的棋盘
    print_board(board)

    # 检查游戏是否结束
    if check_winner(board, player):
        print("恭喜玩家", player, "获胜！")
        return True
    elif is_board_full(board):
        print("游戏结束，平局！")
        return True

    return False

def print_board(board):
    print("-------------")
    print("|", board[0], "|", board[1], "|", board[2], "|")
    print("-------------")
    print("|", board[3], "|", board[4], "|", board[5], "|")
    print("-------------")
    print("|", board[6], "|", board[7], "|", board[8], "|")
    print("-------------")

def check_winner(board, player):
    # 检查行是否有相同的标记
    for i in range(0, 9, 3):
        if board[i] == board[i+1] == board[i+2] == player:
            return True

    # 检查列是否有相同的标记
    for i in range(3):
        if board[i] == board[i+3] == board[i+6] == player:
            return True

    # 检查对角线是否有相同的标记
    if board[0] == board[4] == board[8] == player or board[2] == board[4] == board[6] == player:
        return True

    return False

def is_board_full(board):
    return ' ' not in board