import numpy as np

class Board:

    def __init__(self):
        self.cells = np.zeros((3, 3, 3, 3))
        self.block = np.zeros((3, 3))

    def mark(self, main_row, main_col, player, row=None, col=None):
        if row is None and col is None:
            self.block[main_row][main_col] = player
        else:
            self.cells[main_row][main_col][row][col] = player

class Board:

    def __init__(self):
        self.cells = np.zeros((3, 3, 3, 3))
        self.block = np.zeros((3, 3))

    def mark_move(self, main_row, main_col, row, col, player):
        self.cells[main_row][main_col][row][col] = player
        if np.all(self.cells[main_row][main_col]):
            self.block[main_row][main_col] = player

mark_move方法同时更新单元格和区块数组。如果区块中的所有单元格都被占用，则区块数组中相应的元素将被设置为玩家的值。np.all函数检查数组中的所有元素是否都是non-zero，这表明区块中的所有单元格都被占用。