如何用Python编写实现tic-tac-toe

你可以使用Python编写一个简单的tic-tac-toe游戏，以下是一个示例代码：

def print_board(board):
    print("-------------")
    for i in range(3):
        print("|", end="")
        for j in range(3):
            print(" " + board[i][j] + " |", end="")
        print("\n-------------")

def check_win(board, player):
    for i in range(3):
        if (board[i][0] == player and board[i][1] == player and board[i][2] == player):
            return True
        if (board[0][i] == player and board[1][i] == player and board[2][i] == player):
            return True
    if (board[0][0] == player and board[1][1] == player and board[2][2] == player):
        return True
    if (board[0][2] == player and board[1][1] == player and board[2][0] == player):
        return True
    return False

def tic_tac_toe():
    board = [[" ", " ", " "], [" ", " ", " "], [" ", " ", " "]]
    players = ["X", "O"]
    current_player = players[0]
    print_board(board)
    while True:
        print("It's " + current_player + "'s turn.")
        row = int(input("Enter row (0-2): "))
        col = int(input("Enter column (0-2): "))
        if (board[row][col] != " "):
            print("That spot is already taken. Try again.")
            continue
        board[row][col] = current_player
        print_board(board)
        if (check_win(board, current_player)):
            print(current_player + " wins!")
            break
        if (board[0].count(" ") == 0 and board[1].count(" ") == 0 and board[2].count(" ") == 0):
            print("It's a tie!")
            break
        current_player = players[(players.index(current_player) + 1) % 2]

tic_tac_toe()

这个程序会让两个玩家轮流下棋，直到有一方获胜或者棋盘填满。你可以根据需要进行修改和扩展。