Python：文件格式不正确

Question

下面的CAN不会像应该的那样写入文本文件：

import re

download_results = open('download_result.txt', 'w')
s = 'AAAAAAABBBBCDEEEEEFFFFFFFFFFFFFGGGGGGGGGGGG##GGGGGGHHHHHHHHHHHHHHIIIIIIIIIIIIIIIIIJJJJJJJJJJJJJJKKKKKKKKKKKKLLLLLLLLLLLLLLLLMMMMMMM&&MMMMMMMMNNNNNNNNNNNNOOOOOOOOOOOO'
s = re.sub(r'[^\w]','',s)
s = ''.join(s)
for i in range(0, len(s), 60):
    download_results.write('%s' % (s[i:i+60]))
download_results.write('\n\n')
download_results.close()

文本文件中的输出为：

AAAAAAABBBBCDEEEEEFFFFFFFFFFFFFGGGGGGGGGGGGGGGGGGHHHHHHHHHHHHHHIIIIIIIIIIIIIIIIIJJJJJJJJJJJJJJKKKKKKKKKKKKLLLLLLLLLLLLLLLLMMMMMMMMMMMMMMMNNNNNNNNNNNNOOOOOOOOOOOO

但我希望输出是：

AAAAAAABBBBCDEEEEEFFFFFFFFFFFFFGGGGGGGGGGGGGGGGGGHHHHHHHHHHH
HHHIIIIIIIIIIIIIIIIIJJJJJJJJJJJJJJKKKKKKKKKKKKLLLLLLLLLLLLLL
LLMMMMMMMMMMMMMMMNNNNNNNNNNNNOOOOOOOOOOOO

脚本在包含60个字符的行中写入“S”。你知道吗

Answer 1

您没有向文件中写入任何换行符。你知道吗

Answer 2

更改此项：

download_results.write('%s' % (s[i:i+60]))

对此：

download_results.write('%s\n' % (s[i:i+60]))

Answer 3

然后在循环内的write调用中追加一个换行符-write()不会自动添加换行符，这与print不同。你知道吗

for i in range(0, len(s), 60):
    download_results.write('%s\n' % (s[i:i+60]))
download_results.write('\n')
download_results.close()