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Question

当我在"\n"函数中使用print时，它会在以下代码中给出语法错误

from itertools import combinations
a=[comb for comb in combinations(range(1,96+1),7) if sum(comb) == 42]
print (a "\n")

有没有办法在每个组合中添加新行？

Answer 1

The print function already adds a newline for you, so if you just want to print followed by a newline, do (parens mandatory since this is Python 3):

print(a)

If the goal is to print the elements of a each separated by newlines, you can either loop explicitly:

for x in a:
    print(x)

or abuse star unpacking to do it as a single statement, using sep to split outputs to different lines:

print(*a, sep="\n")

If you want a blank line between outputs, not just a line break, add end="\n\n" to the first two, or change sep to sep="\n\n" for the final option.

Answer 2

两种可能性：

print "%s\n" %a
print a, "\n"

Answer 3

这对你有用：

我在我的例子中使用1,2 ... 6和使用7的组合总和的2个长度元组。

from itertools import combinations
a=["{0}\n".format(comb) for comb in combinations(range(1,7),2) if sum(comb) == 7]

print(a)
for thing in a:
    print(thing)

输出

['(1, 6)\n', '(2, 5)\n', '(3, 4)\n']
(1, 6)

(2, 5)

(3, 4)

Answer 4

过去对我来说，像print（“ \ n”，a）这样的东西很有效。

python中带变量的新行

4 个答案:

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