将两个列表添加到第一列和最后一行字符串

Question

我有这个代码：

    def __repr__(self):

    """
    :return: Return a string representation of the board.
    """
    list1=['0','1','2','3','4','5','-']
    list2=['0','1','2','E','4','5']
    output=''
    for row in self.board:

        output=output+str(row)+'\n'


    return output

self.board是下面的输出列表，

这个矩阵的输出为字符串：

['_', '_', '_', 'R', '_', '_']
['_', '_', '_', 'R', '_', '_']
['_', '_', '_', '_', '_', '_']
['_', '_', '_', '_', '_', '_']
['_', '_', '_', '_', '_', '_']
['p', 'p', '_', '_', '_', '_']

现在，正如我在代码中看到的那样，我已经定义了两个列表，我想将list1添加为此字符串中的第一列，并将list2添加为最后一行，我仍然无法弄清楚我怎么能这样做呢..

这是我想要做的输出：

['0', '_', '_', '_', 'R', '_', '_']
['1', '_', '_', '_', 'R', '_', '_']
['2', '_', '_', '_', '_', '_', '_']
['3', '_', '_', '_', '_', '_', '_']
['4', '_', '_', '_', '_', '_', '_']
['5', 'p', 'p', '_', '_', '_', '_']
['-', '0', '1', '2', 'E', '4', '5']

有什么想更新我的代码以便管理它？

谢谢！

Answer 1

def __repr__(self):

    """
    :return: Return a string representation of the board.
    """
    list1=['0','1','2','3','4','5','-']
    list2=['0','1','2','E','4','5']
    output=''
    for x in xrange(len(self.board)):
        output = output + str([list1[x]] + self.board[x])+'\n'
    output = output + str([list1[-1] + list2) + '\n'

    return output

Answer 2

如果board完全如下，那么你可以将list2添加到board，zip board，然后用board中的值将每行list1压缩：

board = [['_', '_', '_', 'R', '_', '_'],
['_', '_', '_', 'R', '_', '_'],
['_', '_', '_', '_', '_', '_'],
['_', '_', '_', '_', '_', '_'],
['_', '_', '_', '_', '_', '_'],
['p', 'p', '_', '_', '_', '_']]
list1=['0','1','2','3','4','5','-']
list2=['0','1','2','E','4','5']
final_board = [[a]+list(c) for a, c in zip(list1, list(zip(board+[list2])))]
new_final_board = [[a, *b] for a, b in final_board]

输出：

['0', '_', '_', '_', 'R', '_', '_']
['1', '_', '_', '_', 'R', '_', '_']
['2', '_', '_', '_', '_', '_', '_']
['3', '_', '_', '_', '_', '_', '_']
['4', '_', '_', '_', '_', '_', '_']
['5', 'p', 'p', '_', '_', '_', '_']
['-', '0', '1', '2', 'E', '4', '5']

Answer 3

使用enumerate操作，您可以获取索引和数组中的对象。

这样，您可以在打印线之前打印正确的字符，然后打印最后一行。

def __repr__(self):

    """
    :return: Return a string representation of the board.
    """
    list1 = ['0','1','2','3','4','5']
    list2 = ['-','0','1','2','E','4','5']
    output = ''
    for rowNumber, row in enumerate(self.board):
        output = list1[rowNumber] + output + str(row)+'\n'
    output = output + str(list2)

    return output