Tac Tac Toe获胜者函数为Buggy

def get_winner(board):
    # 判断横向是否有连线
    for row in board:
        if row.count(row[0]) == len(row) and row[0] != 0:
            return row[0]
    
    # 判断纵向是否有连线
    for col in range(len(board[0])):
        if board[0][col] == board[1][col] == board[2][col] and board[0][col] != 0:
            return board[0][col]
    
    # 判断斜线是否有连线
    if board[0][0] == board[1][1] == board[2][2] and board[0][0] != 0:
        return board[0][0]
    if board[0][2] == board[1][1] == board[2][0] and board[0][2] != 0:
        return board[0][2]
    
    # 没有获胜者
    return 0