Question

嘿，我被困在最后一部分，我不得不写位置标记（place_marker（the_Board，player2_marker，position）），它无法识别标记，它说这是一个未定义的变量，有什么想法吗？

这是我的脚本：（由于该问题尚未完成）

def display_board(board):
    print('\n'*3)
    print(board[7]+'|'+board[8]+'|'+board[9])
    print(board[4]+'|'+board[5]+'|'+board[6])
    print(board[1]+'|'+board[2]+'|'+board[3])

#test_board = ['#','X','O','X','O','X','O','X','O','X'] #test
#display_board(test_board) #test

def player_input():
    print('\n'*3)
    Player1_name=input('What is your name player1 ? : ')
    Player2_name=input('What is your name player2 ? : ')
    marker = ''
    while marker != 'X' and marker != '0' :
        Player1=marker = input('{}, please chose X or 0 : '.format(Player1_name))

    if Player1 == 'X':
        Player2 = '0'
    else:
        Player2= 'X'


    return ('OK, {} is : {}\nAnd {} is : {} ' .format(Player1_name,Player1,Player2_name,Player2))

#print(player_input()) #test

def place_marker(board, marker, position):
    board[position] = marker

#print(place_marker(test_board,'2',8))
#print(display_board(test_board))

def win_check(board, mark):
    return ((board[7] == mark and board[8] == mark and board[9] == mark) or (board[4] == mark and board[5] == mark and board[6] == mark) or (board[1] == mark and board[2] == mark and board[3] == mark) or (board[7] == mark and board[4] == mark and board[1] == mark) or (board[8] == mark and board[5] == mark and board[2] == mark) or (board[9] == mark and board[6] == mark and board[3] == mark) or (board[7] == mark and board[5] == mark and board[3] == mark) or (board[9] == mark and board[5] == mark and board[1] == mark))

#print(win_check(test_board,'X')) #test

import random 

def choose_first():
    flip = random.randint(0,1)
    if flip == 0 :
        return 'Player1'
    else:
        return 'Player2'

def space_check(board, position):
    return board[position] == ''

def full_board_check(board):
    for i in range(1, 10) :
        if space_check(board, i):
            return False
    return True

def player_choice(board):
    print('\n'*3)
    position = 0
    while position not in [1,2,3,4,5,6,7,8,9] or not space_check(board,position):
        position = int(input('Please chose a position from 1 to 9 : '))
    return position

def replay():
    choise = input('Do you wnat to play again, yes or no ? : ')
    return choise == 'yes'

print('Welcome to Tic Tac Toe!')
while True:
    the_board=[' '] *10
    player_input()
    turn=choose_first()
    print(turn+'will go first')

    play_game=input('Ready to play ? y or n ? : ')
    if play_game == 'y' :
        game_on = True
    else:
        game_on = False 

    while game_on :
        if turn == 'Player1' :
            display_board(the_board)
            position=player_choice(the_board)
            place_marker(the_Board, player2_marker, position)   ### HERE

            if win_check (the_board ,Player1) :
                display_board(the_board)
                print('{} has Won !!')
                game_on = False

        if not replay() :
            break

运行代码后，这是控制台，由于最终脚本未完成，它无法识别我的数字，

Welcome to Tic Tac Toe!
What is your name player1 ? : SALLY
What is your name player2 ? : Sammy
Player1will go first
Ready to play ? y or n ? : y
 | | 
 | | 
 | | 
Please chose a position from 1 to 9 : 1
Please chose a position from 1 to 9 : 2
Please chose a position from 1 to 9 : 3

它仍然要求我提供电话号码

我试图更改place_marker代码的某些参数，但是没有用

def place_marker(board, marker, position):
    board[position] = marker
place_marker(the_Board, player2_marker, position)

Answer 1

您的问题正好在您标记的地方：

place_marker(the_Board, player2_marker, position)

这是对player2_marker的首次引用。您需要在引用之前对其进行初始化！我认为这很简单，只要您将其设置为“ O”或“ X”即可。

Answer 2

您好，谢谢您的回答，我意识到，我将自己的脚本与课程解决方案脚本进行了比较，并且看到我在播放器输入处进行了修改，只是返回了格式化的句子，所以我用那个修改了我的代码返回分配给玩家1的'x'，'0'或'0'或'x'，玩家2 = player_input（），玩家1 = x且玩家2 = o或reverse，因此该变量我可以在place_marker函数中引入X（分配给播放器1）或O（分配给播放器2），也没有什么错误，现在终于可以使用了！！

如何修复python中的未定义错误？

2 个答案: