在Python游戏中需要一个缩进块

我正在编写一个用Python播放Connect Four的程序，我不知道如何解决在某些区域向我抛出的预期缩进块错误。每当我尝试运行[行][列]部分时，它都会抛出错误。我正在使用一些示例代码来帮助我开发自己的代码，以下是我正在使用的代码：

import random

def winner(board):
"""This function accepts the Connect 4 board as a parameter.  
If there is no winner, the function will return the empty string "".  
If the user has won, it will return 'X', and if the computer has
won it will return 'O'."""

# Check rows for winner
for row in range(6):
for col in range(3):
    if (board[row][col] == board[row][col + 1] == board[row][col + 2] ==\
        board[row][col + 3]) and (board[row][col] != " "):
    return board[row][col]

# Check columns for winner
for col in range(6):
for row in range(3):
    if (board[row][col] == board[row + 1][col] == board[row + 2][col] ==\
        board[row + 3][col]) and (board[row][col] != " "):
        return board[row][col]

# Check diagonal (top-left to bottom-right) for winner

for row in range(3):
for col in range(4):
    if (board[row][col] == board[row + 1][col + 1] == board[row + 2][col + 2] ==\
        board[row + 3][col + 3]) and (board[row][col] != " "):
        return board[row][col]


# Check diagonal (bottom-left to top-right) for winner

for row in range(5, 2, -1):
for col in range(3):
    if (board[row][col] == board[row - 1][col + 1] == board[row - 2][col + 2] ==\
        board[row - 3][col + 3]) and (board[row][col] != " "):
        return board[row][col]

# No winner: return the empty string
return ""

def display_board(board):

print "   1   2   3   4    5   6   7"
print "1: " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " | " + board[0][3] + " |    " + board[0][4] + " | " + board[0][5] + " | " + board[0][6] + " | " + board[0][7]
print "  ---+---+---+---+---+---+---"
print "2: " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " | " + board[1][3] + " | " + board[1][4] + " | " + board[1][5] + " | " + board [1][6] + " | " + board [1][7]  
print "  ---+---+---+---+---+---+---+"
print "3: " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " | " + board[2][3] + " | " + board [2][4] + " | " + board [2][5] + " | " + board [2][6] + " | " + board [2][7]
print "  ---+---+---+---+---+---+---+"
print "4: " + board[3][0] + " | " + board[3][1] + " | " + board[3][2] + " | " + board[3][3] + " | " + board [3][4] + " | " + board [3][5] + " | " + board [3][6] + " | " + board [3][7]
print "  ---+---+---+---+---+---+---+"
print "5: " + board[4][0] + " | " + board[4][1] + " | " + board[4][2] + " | " + board[4][3] + " | " + board [4][4] + " | " + board [4][5] + " | " + board [4][6] + " | " + board [4][7]
print "  ---+---+---+---+---+---+---+"
print "6: " + board[5][0] + " | " + board[5][1] + " | " + board[5][2] + " | " + board[5][3] + " | " + board [5][4] + " | " + board [5][5] + " | " + board [5][6] + " | " + board [5][7]
print

def make_user_move(board):

try:    
valid_move = False
while not valid_move:
    col = input("What col would you like to move to (1-7):")
    for row in range (6,0,-1):
        if (1 <= row <= 6) and (1 <= col <= 7) and (board[row-1][col-1] == " "):
            board[row-1][col-1] = 'X'
            valid_move = True
            break
    else:
        print "Sorry, invalid square. Please try again!\n"

except NameError:
print "Only numbers are allowed."

except IndexError:
print "You can only select columns from (1-7), and rows from (1-6)."

def make_computer_move(board):

---

看起来您没有缩进for循环：

对于范围6中的行： 对于范围3中的col： 如果线路板[行][col]==线路板[行][col+1]==线路板[行][col+2]==\ 板[行][col+3]和板[行][col]！=： 返回板[行][列]

---

：表示需要在下一行缩进。

有很多地方由于无法解释的原因缩进明显缺失。正如@davism提到的，python中的缩进用于表示嵌套级别；因此，该代码在当前状态下完全不可用

下面是我试图猜测代码的用途，这样您就可以了解所有空格重要的地方，但它只是缺少在您的代码中

import random


def winner(board):
    for row in range(6):
        for col in range(3):
            if (board[row][col] == board[row][col + 1] == board[row][col + 2] == \
                        board[row][col + 3]) and (board[row][col] != " "):
                return board[row][col]  # Check columns for winner

    for col in range(6):
        for row in range(3):
            if (board[row][col] == board[row + 1][col] == board[row + 2][col] == \
                    board[row + 3][col]) and (board[row][col] != " "):
                return board[row][col]

# Check diagonal (top-left to bottom-right) for winner

    for row in range(3):
        for col in range(4):
            if (board[row][col] == board[row + 1][col + 1] == board[row + 2][col + 2] == \
                    board[row + 3][col + 3]) and (board[row][col] != " "):
                return board[row][col]


# Check diagonal (bottom-left to top-right) for winner

    for row in range(5, 2, -1):
        for col in range(3):
            if (board[row][col] == board[row - 1][col + 1] == board[row - 2][col + 2] == \
                    board[row - 3][col + 3]) and (board[row][col] != " "):
                return board[row][col]

# No winner: return the empty string
    return ""


def display_board(board):


    print "   1   2   3   4    5   6   7"
    print "1: " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " | " + board[0][3] + " |    " + board[0][
        4] + " | " + board[0][5] + " | " + board[0][6] + " | " + board[0][7]
    print "  ---+---+---+---+---+---+---"
    print "2: " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " | " + board[1][3] + " | " + board[1][
        4] + " | " + board[1][5] + " | " + board[1][6] + " | " + board[1][7]
    print "  ---+---+---+---+---+---+---+"
    print "3: " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " | " + board[2][3] + " | " + board[2][
        4] + " | " + board[2][5] + " | " + board[2][6] + " | " + board[2][7]
    print "  ---+---+---+---+---+---+---+"
    print "4: " + board[3][0] + " | " + board[3][1] + " | " + board[3][2] + " | " + board[3][3] + " | " + board[3][
        4] + " | " + board[3][5] + " | " + board[3][6] + " | " + board[3][7]
    print "  ---+---+---+---+---+---+---+"
    print "5: " + board[4][0] + " | " + board[4][1] + " | " + board[4][2] + " | " + board[4][3] + " | " + board[4][
        4] + " | " + board[4][5] + " | " + board[4][6] + " | " + board[4][7]
    print "  ---+---+---+---+---+---+---+"
    print "6: " + board[5][0] + " | " + board[5][1] + " | " + board[5][2] + " | " + board[5][3] + " | " + board[5][
        4] + " | " + board[5][5] + " | " + board[5][6] + " | " + board[5][7]
    print


def make_user_move(board):    
    try:
        valid_move = False
        while not valid_move:
            col = input("What col would you like to move to (1-7):")
            for row in range(6, 0, -1):
                if (1 <= row <= 6) and (1 <= col <= 7) and (board[row - 1][col - 1] == " "):
                    board[row - 1][col - 1] = 'X'
                    valid_move = True
                    break
            else:
                print "Sorry, invalid square. Please try again!\n"
    except NameError:
        print "Only numbers are allowed."

    except IndexError:
        print "You can only select columns from (1-7), and rows from (1-6)."


def make_computer_move(board):
    # Code needed here...
    valid_move = False
    while not valid_move:
        row = random.randint(0, 5)
        col = random.randint(0, 6)
        for row in range(5, 0, -1):
            if board[row][col] == " ":
                board[row][col] = "O"
                valid_move = True
                break


def main():
    free_cells = 42
    users_turn = True
    count = 1
    ttt_board = [[" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "]]

    print "\nHALL OF FAME \n"

    try:
        hall_of_fame = open("HallOfFame.txt", 'r')

        for name in hall_of_fame:
            print str(count) + ".", name
            print
            count += 1

        hall_of_fame.close()

    except IOError:
        print "No Human Has Ever Beat Me.. mwah-ha-ha-ha!\n"

    choice = raw_input("Would you like to go first? (y or n): ")

    if (choice == 'y' or choice == 'Y'):
        users_turn = True


    elif (choice == 'n' or choice == 'N'):
        users_turn = False

    else:
        print 'invalid input'

    while not winner(ttt_board) and (free_cells > 0):
        display_board(ttt_board)
        if users_turn:
            make_user_move(ttt_board)
            users_turn = not users_turn
        else:
            make_computer_move(ttt_board)
            users_turn = not users_turn
        free_cells -= 1

    display_board(ttt_board)
    if (winner(ttt_board) == 'X'):
        print "You Won!"
        print "Your name will now be added to the Hall of Fame!"

        hall_of_fame = open("HallOfFame.txt", 'a')
        name = raw_input("Enter your name: ")
        hall_of_fame.write(name + '\n')
        print "Your name has been added to the Hall of Fame!"

        hall_of_fame.close()

        print "\nGAME OVER"
    elif (winner(ttt_board) == 'O'):
        print "The Computer Won!"
        print "\nGAME OVER"
    else:
        print "Stalemate!"
        print "\nGAME OVER \n"

# start the game

main()

---

不幸的是，缺少缩进的for循环远远不止这些：

import random


def winner(board):
    for row in range(6):
        for col in range(3):
            if (board[row][col] == board[row][col + 1] == board[row][col + 2] == \
                        board[row][col + 3]) and (board[row][col] != " "):
                return board[row][col]  # Check columns for winner

    for col in range(6):
        for row in range(3):
            if (board[row][col] == board[row + 1][col] == board[row + 2][col] == \
                    board[row + 3][col]) and (board[row][col] != " "):
                return board[row][col]

# Check diagonal (top-left to bottom-right) for winner

    for row in range(3):
        for col in range(4):
            if (board[row][col] == board[row + 1][col + 1] == board[row + 2][col + 2] == \
                    board[row + 3][col + 3]) and (board[row][col] != " "):
                return board[row][col]


# Check diagonal (bottom-left to top-right) for winner

    for row in range(5, 2, -1):
        for col in range(3):
            if (board[row][col] == board[row - 1][col + 1] == board[row - 2][col + 2] == \
                    board[row - 3][col + 3]) and (board[row][col] != " "):
                return board[row][col]

# No winner: return the empty string
    return ""


def display_board(board):


    print "   1   2   3   4    5   6   7"
    print "1: " + board[0][0] + " | " + board[0][1] + " | " + board[0][2] + " | " + board[0][3] + " |    " + board[0][
        4] + " | " + board[0][5] + " | " + board[0][6] + " | " + board[0][7]
    print "  ---+---+---+---+---+---+---"
    print "2: " + board[1][0] + " | " + board[1][1] + " | " + board[1][2] + " | " + board[1][3] + " | " + board[1][
        4] + " | " + board[1][5] + " | " + board[1][6] + " | " + board[1][7]
    print "  ---+---+---+---+---+---+---+"
    print "3: " + board[2][0] + " | " + board[2][1] + " | " + board[2][2] + " | " + board[2][3] + " | " + board[2][
        4] + " | " + board[2][5] + " | " + board[2][6] + " | " + board[2][7]
    print "  ---+---+---+---+---+---+---+"
    print "4: " + board[3][0] + " | " + board[3][1] + " | " + board[3][2] + " | " + board[3][3] + " | " + board[3][
        4] + " | " + board[3][5] + " | " + board[3][6] + " | " + board[3][7]
    print "  ---+---+---+---+---+---+---+"
    print "5: " + board[4][0] + " | " + board[4][1] + " | " + board[4][2] + " | " + board[4][3] + " | " + board[4][
        4] + " | " + board[4][5] + " | " + board[4][6] + " | " + board[4][7]
    print "  ---+---+---+---+---+---+---+"
    print "6: " + board[5][0] + " | " + board[5][1] + " | " + board[5][2] + " | " + board[5][3] + " | " + board[5][
        4] + " | " + board[5][5] + " | " + board[5][6] + " | " + board[5][7]
    print


def make_user_move(board):    
    try:
        valid_move = False
        while not valid_move:
            col = input("What col would you like to move to (1-7):")
            for row in range(6, 0, -1):
                if (1 <= row <= 6) and (1 <= col <= 7) and (board[row - 1][col - 1] == " "):
                    board[row - 1][col - 1] = 'X'
                    valid_move = True
                    break
            else:
                print "Sorry, invalid square. Please try again!\n"
    except NameError:
        print "Only numbers are allowed."

    except IndexError:
        print "You can only select columns from (1-7), and rows from (1-6)."


def make_computer_move(board):
    # Code needed here...
    valid_move = False
    while not valid_move:
        row = random.randint(0, 5)
        col = random.randint(0, 6)
        for row in range(5, 0, -1):
            if board[row][col] == " ":
                board[row][col] = "O"
                valid_move = True
                break


def main():
    free_cells = 42
    users_turn = True
    count = 1
    ttt_board = [[" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "], [" ", " ", " ", " ", " ", " ", " ", " "]]

    print "\nHALL OF FAME \n"

    try:
        hall_of_fame = open("HallOfFame.txt", 'r')

        for name in hall_of_fame:
            print str(count) + ".", name
            print
            count += 1

        hall_of_fame.close()

    except IOError:
        print "No Human Has Ever Beat Me.. mwah-ha-ha-ha!\n"

    choice = raw_input("Would you like to go first? (y or n): ")

    if (choice == 'y' or choice == 'Y'):
        users_turn = True


    elif (choice == 'n' or choice == 'N'):
        users_turn = False

    else:
        print 'invalid input'

    while not winner(ttt_board) and (free_cells > 0):
        display_board(ttt_board)
        if users_turn:
            make_user_move(ttt_board)
            users_turn = not users_turn
        else:
            make_computer_move(ttt_board)
            users_turn = not users_turn
        free_cells -= 1

    display_board(ttt_board)
    if (winner(ttt_board) == 'X'):
        print "You Won!"
        print "Your name will now be added to the Hall of Fame!"

        hall_of_fame = open("HallOfFame.txt", 'a')
        name = raw_input("Enter your name: ")
        hall_of_fame.write(name + '\n')
        print "Your name has been added to the Hall of Fame!"

        hall_of_fame.close()

        print "\nGAME OVER"
    elif (winner(ttt_board) == 'O'):
        print "The Computer Won!"
        print "\nGAME OVER"
    else:
        print "Stalemate!"
        print "\nGAME OVER \n"

# start the game

main()