无法设置单个矩阵值

Question

我正在建立一个国际象棋游戏。我的董事会是这样定义的：

def new_board(cls, btype):
    def size(x):
        return [['___'] * x] * x
    ...

在这种情况下为x = 8。

我使用此功能将其打印得很漂亮：

def print_board(cls):
        def printl():
            for x in range(len(cls.board)):
                print(' '*6 + f'{Config.letters[x]}', end='')
            print('\n')

        printl()
        for x in range(len(cls.board)):
            print(f'{len(cls.board)-x}  {cls.board[x]}  {len(cls.board)-x}\n')
        printl()
        print('\n\n\n\n')

这是结果：

      a      b      c      d      e      f      g      h

8  ['___', '___', '___', '___', '___', '___', '___', '___']  8

7  ['___', '___', '___', '___', '___', '___', '___', '___']  7

6  ['___', '___', '___', '___', '___', '___', '___', '___']  6

5  ['___', '___', '___', '___', '___', '___', '___', '___']  5

4  ['___', '___', '___', '___', '___', '___', '___', '___']  4

3  ['___', '___', '___', '___', '___', '___', '___', '___']  3

2  ['___', '___', '___', '___', '___', '___', '___', '___']  2

1  ['___', '___', '___', '___', '___', '___', '___', '___']  1

      a      b      c      d      e      f      g      h

如果我尝试将一块放置在特定的索引上，

Config.board[1][3] = 'wK1'

会发生这种情况：

      a      b      c      d      e      f      g      h

8  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  8

7  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  7

6  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  6

5  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  5

4  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  4

3  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  3

2  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  2

1  ['___', '___', '___', 'wK1', '___', '___', '___', '___']  1

      a      b      c      d      e      f      g      h

如何使作品只出现在一个正方形上？

如果您想运行它，这是我的完整代码：

class Config:
    letters = tuple('abcdefghijklmnopqrstuvwxyz')


    @classmethod
    def new_board(cls, btype):
        def size(x):
            return [['___'] * x] * x

        if 'custom' in btype.lower():
            btype = int(btype.replace('custom', '').strip())
            cls.board = size(btype)
        elif btype.lower() == 'default':
            cls.board = size(8)
        elif btype.lower() == 'extended':
            cls.board = size(10)
        elif btype.lower() == 'small':
            cls.board = size(5)

    @classmethod
    def print_board(cls):
        def printl():
            for x in range(len(cls.board)):
                print(' '*6 + f'{Config.letters[x]}', end='')
            print('\n')

        printl()
        for x in range(len(cls.board)):
            print(f'{len(cls.board)-x}  {cls.board[x]}  {len(cls.board)-x}\n')
        printl()
        print('\n\n\n\n')

    @classmethod
    def tile_convert(cls, x):
        if isinstance(x, str):
            return cls.letters.index(x)
        else:
            return cls.letters[x]

class Knight:
    def __init__(self, pos, color=None, num=''):
        self.x = int(Config.tile_convert(pos[0]))
        self.y = int(pos[1])
        self.color = color
        self.bare = num
        self.id_ = f'K{num}'
        self.set_id()
        self.create()

    def __str__(self):
        return f'{self.color.capitalize()} Knight {self.bare}'

    def set_id(self):
        if self.color is not None:
            if self.color.lower() in ('black', 'white', 'b', 'w'):
                self.id_ = self.color.lower()[0] + self.id_
                if self.color.lower() == 'b':
                    self.color = 'black'
                elif self.color.lower() == 'w':
                    self.color = 'white'
            else:
                self.color = None
                print("Invalid color input. Color not set.")
                self.set_id()
        else:
             self.id_ = '_' + self.id_


    def create(self): pass
        #Config.board[self.y][self.x] = self.id_

    def get_info(self):
        print(f'{self}:\n')
        print('ID: ', self.id_)
        print('Position: ', Config.tile_convert(self.x), self.y, sep='')
        print('Color: ', self.color)

    def get_moves(self): pass

Config.new_board('default')
Config.print_board()

knight1 = Knight('e3', color='w', num=1)

Config.print_board()

knight1.get_info()

Config.board[1][3] = 'wK1'

Config.print_board()