如何在我的马卒去过的每个位置放置一个数字(在一个2D“板”数组中)

def placeNumber(board, row, col, number):
    if row < 0 or col < 0 or row >= len(board) or col >= len(board[0]):
        return
    
    if board[row][col] != 0:
        return
    
    board[row][col] = number
    
    # 马的走法，可能的8个位置
    moves = [(2, 1), (2, -1), (-2, 1), (-2, -1),
             (1, 2), (1, -2), (-1, 2), (-1, -2)]
    
    for move in moves:
        next_row = row + move[0]
        next_col = col + move[1]
        placeNumber(board, next_row, next_col, number + 1)
    
    board[row][col] = 0

def fillNumbersInBoard(board):
    for row in range(len(board)):
        for col in range(len(board[0])):
            placeNumber(board, row, col, 1)

# 测试代码
board = [[0 for _ in range(8)] for _ in range(8)]  # 8x8的棋盘
fillNumbersInBoard(board)

# 打印结果
for row in board:
    print(row)