Question

我正在写一个Battleship游戏，我面临一些问题。我已经编写了一些足够的代码来创建一个10x10的地图，随机定位一个船的位置并给玩家10个猜测。现在我是尝试将数字1-10放在顶行和第一列中以使地图更清晰。不幸的是，在添加数字后，我将列表更改为不同的内容：

from random import randint

board = []

board.append((str(n) for n in(range(0, 11))))
liczba_kolumn = 10

for x in range(9):
    board.append([str(x + 1)] +["O"] * liczba_kolumn)

board.append(["10O"] + ["O"] * (liczba_kolumn - 1))

def print_board(board):
    for row in board:
        print(" ".join(row))

print ("Let's play Battleship!")
print_board(board)

def random_row(board):
    return randint(1, len(board))

def random_col(board):
    return randint(1, len(board[0]))

ship_row = random_row(board)
ship_col = random_col(board) `
for turn in range(10):

    print ("Turn " + str(liczba_prob)) 
    guess_row = input("Guess Row:") 
    guess_col = input("Guess Col:")
    liczba_prob = liczba_prob - 1
    if guess_row == "" or guess_col == "":
        print ("guess the location")
    else:

        guess_row = int(guess_row) - 1
        guess_col = int(guess_col) - 1
        if guess_row == ship_row and guess_col == ship_col:
            print ("Congratulations! You sunk my battleship!")
            break
        else:
            if (guess_row < 0 or guess_row > 9) or (guess_col < 0 or             guess_col > 9):
                print ("Wrong localisation")
            elif(board[guess_row][guess_col] == "X"):
                print ("You already guessed that one.")

第一个错误是

return randint(1, len(board[0]))
TypeError: object of type 'generator' has no len()

我将random_functions从len（）改为“11”。但是下一个错误是

elif(board[guess_row][guess_col] == "X"):
TypeError: 'generator' object is not subscriptable.

我的问题是 - 我在哪个时刻将我的board []列表更改为'generator'，如何将其更改为列表？

编辑：

感谢您的回答，他们帮助了我很多。现在我想了解一个不同的东西 - 为什么代码

board = []
board.append(["10O"] + ["O"] * (10))
print(" ".join(board))

返回一个错误：序列项0：预期的str实例，找到列表？第一个和下一个项目都在括号中。看起来非常相似的代码不会返回错误：

board = []
board.append(["10O"] + ["O"] * 10)
def print_board(board):
    for row in board:
        print(" ".join(row))
print_board(board)

Answer 1

行board.append((str(n) for n in(range(0, 11))))将生成符附加到board。您可能希望.extend()或.insert([str(n) ... ])（观看[和]）

意外地将列表更改为生成器

1 个答案: