python - 有没有一种干净的方法可以在 Python 中编写多行字符串？

Question

<分区>

Answer 1

我会选择:

def pr():
    # parentheses are for grouping and (as a bonus) for a pretty indentation
    s = ("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
         "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")
    print s

引用informal introduction to Python :

Two string literals next to each other are automatically concatenated; the first line above could also have been written word = 'Help' 'A'; this only works with two literals, not with arbitrary string expressions.

>>> s = 'a' 'b'
>>> s
'ab'
>>> s = 'a''b' # space is not necessary
>>> s
'ab'

旁注:连接是在编译为字节码期间执行的:

>>> import dis
>>> dis.dis(pr)

 0 LOAD_CONST               1 ('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb')

可能这种连接传统来自 C:

// prints "hello world"
#include <stdio.h>

int main(int argc, char **argv) {
  printf("hello" " world");
  return 0;
}