如何更有效地打印Sudoku网格

问题描述

我正在终端中对Sudoku游戏进行编程，我想将网格打印到控制台，并在其周围有一个正方形，如下图所示.我的代码没有问题，但效率很低.

I'm Programming Sudoku game in terminal, I want to Print the grid to console with a square around it as in the picture below.There is no problem with my code except it is inefficient.

我想使其更高效，更短(具有列表理解，字符串乘法等功能).董事会是这样定义的，板= [[_代表范围(9)中的_] _代表范围(9)中的_]

I would like to get it more efficient and short (with list comprehensions, string multiplying, etc).the board is defined like that,board = [[_ for _ in range(9)] for _ in range(9)]

那是我正在使用的功能:

That is the function i'm using:

def Print_Board(board):

    print("\n-------------------------")

    for i in range(9):
        for j in range(9):
            if board[i][j] is not None:
                if j == 0:
                    print("|", end=" ")
                print(f"{board[i][j]} ", end="")
            if (j + 1) % 3 == 0:
                print("|", end=" ")
        if (i + 1) % 3 == 0:
            print("\n-------------------------", end=" ")
        print()

推荐答案

您可以构建电路板格式并将所有数据投入其中:

You can build a board format and throw all the data at it:

bar = '-------------------------\n'
lnf = '|' +(' {:}'*3 + ' |')*3 + '\n'
bft = bar + (lnf*3+bar)*3
print(bft.format(*(el for rw in board for el in rw)))

当然，您只需要构建一次格式.之后，这只是打印.

You only need to build the format once, of course. After that it's just a print.

JonSG的注释建议将其封装在一个闭包中:

Suggestion from JonSG in comments to encapsulate this in a closure:

def make_board_printer():
    bar = '-------------------------\n'
    lnf = '|' +(' {:}'*3 + ' |')*3 + '\n'
    bft = bar + (lnf*3+bar)*3
    return (lambda bd:print(bft.format(*(el for rw in bd for el in rw))))

是返回板载打印机功能的函数:

is a function which returns a board printer function:

# make a printer:
b_print = make_board_printer()

# then as needed
b_print(board)

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