Question

我正在尝试测试一个Lo Shu Magic Square功能，但我遇到了一些问题。其中一个问题是我收到一条错误消息，上面写着TypeError：＆＃39; int＆＃39;对象不可迭代，但我看不出我做错了什么。其次是有更好的更有效的方法来编写这个代码来检查lo_shu_square变量是否是一个Lo Shu Magic Square？我是Python的新手，但它似乎效率低下。

ROWS = 3
COLUMNS = 3

def magic():
    lo_shu_square = [[8, 1, 6],[3, 5, 7],[4, 9, 2]]
    for r in range (ROWS):
        for c in range (COLUMNS):
            if sum(r) == sum (lo_shu_square[c][c] for c in range(COLUMNS)):
                if sum(r)== sum(r[c] for r in lo_shu_square):
                    answer_output = str('a Lo Shu Magic Square')
            else:
                answer_output = str('not a Lo Shu Magic Square')

    print("The inputs are", answer_output)

magic()

错误消息：

if sum(r) == sum (lo_shu_square[c][c] for c in range(COLUMNS)):
TypeError: 'int' object is not iterable

Answer 1

谢谢@Arman！这是一个简单的解决方案。

COLUMNS = 3

def magic():
    lo_shu_square = [[8, 1, 6],[3, 5, 7],[4, 9, 2]]
    for r in lo_shu_square:
        for c in range (COLUMNS):
            if sum(r) == sum (lo_shu_square[c][c] for c in range(COLUMNS)):
                if sum(r)== sum(r[c] for r in lo_shu_square):
                    answer_output = str('a Lo Shu Magic Square')
            else:
                answer_output = str('not a Lo Shu Magic Square')

    print("The inputs are", answer_output)

magic()

Python罗舒魔术

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