Question

我是Python新手。我有两个文件，我需要将两个文件逐行合并到一个文件中。

file_1.txt: 
feel my cold hands.
I love oranges. 
Mexico has a large surplus of oil.
Ink stains don't rub out.

file_2.txt: 
≥ª ¬˘ º’¿ª ¡ª ∏∏¡Æ∫¡.
∏«¸ ∫Ò«‡±‚∞° ∞≠¿ª ≥Øæ∆∞¨¥Ÿ.
∏ﬂΩ√ƒ⁄ø°¥¬ ¥Ÿ∑Æ¿« ø©∫–¿« ºÆ¿Ø∞° ¿÷¥Ÿ.
¿◊≈© ¿⁄±π¿∫ ¥€æ∆µµ ¡ˆøˆ¡ˆ¡ˆ æ ¥¬¥Ÿ.



FINAL OUTPUT should look like: 

feel my cold hands.
≥ª ¬˘ º’¿ª ¡ª ∏∏¡Æ∫¡.

I love oranges. 
∏«¸ ∫Ò«‡±‚∞° ∞≠¿ª ≥Øæ∆∞¨¥Ÿ.

Mexico has a large surplus of oil.
∏ﬂΩ√ƒ⁄ø°¥¬ ¥Ÿ∑Æ¿« ø©∫–¿« ºÆ¿Ø∞° ¿÷¥Ÿ.

Ink stains don't rub out.
¿◊≈© ¿⁄±π¿∫ ¥€æ∆µµ ¡ˆøˆ¡ˆ¡ˆ æ ¥¬¥Ÿ.

这是我试过的

filenames = ['data/data.txt', 'data/data2.txt']
with open('data/test.txt', 'w') as outfile:
    for fname in filenames:
        with open(fname) as infile:
            for line in infile:
                outfile.write(line)

这里的代码只是一个接一个地汇编文件。但是，它并没有逐行削减并创建\ n。谢谢！

参考文献： combine multiple text files into one text file using python

Python concatenate text files

Answer 1

所以诀窍是我们想要同时迭代这两个文件。为此，我们可以使用zip函数，如下所示：

filenames = ['data/data.txt', 'data/data2.txt']
with open('data/test.txt', 'w') as outfile:
    with open(filenames[0]) as f1, open(filenames[1]) as f2:
        for f1_line, f2_line in zip(f1, f2):
            outfile.write(f1_line)
            outfile.write(f2_line)
            outfile.write("\n")  # add blank line between each pair

Answer 2

你可以用这个：

className

Answer 3

您可以使用上下文管理器：

import contextlib

@contextlib.contextmanager
def aline(outfile, *files):
  final_data = zip(open(files[0]), open(files[1]))
  yield ['\n'.join([a, b]) for a, b in final_data]
  f = open(outfile, 'w')
  for a, b in final_data:
    f.write('\n'.join([a, b])+'\n\n')
  f.close()

with aline('output.txt', *['data/data.txt', 'data/data2.txt']) as f:
  print(f)

输出（int output.txt）：

feel my cold hands.
≥ª ¬˘ º’¿ª ¡ª ∏∏¡Æ∫¡.

I love oranges. 
∏«¸ ∫Ò«‡±‚∞° ∞≠¿ª ≥Øæ∆∞¨¥Ÿ.

Mexico has a large surplus of oil.
∏ﬂΩ√ƒ⁄ø°¥¬ ¥Ÿ∑Æ¿« ø©∫–¿« ºÆ¿Ø∞° ¿÷¥Ÿ.

Ink stains don't rub out.
¿◊≈© ¿⁄±π¿∫ ¥€æ∆µµ ¡ˆøˆ¡ˆ¡ˆ æ ¥¬¥Ÿ.

Answer 4

试试这个：

filenames = ['data/data.txt', 'data/data2.txt']
with open('data/test.txt', 'w') as outfile,ExitStack() as stack:
    files = [stack.enter_context(open(fname)) for fname in filenames]
    for lines in zip(*files):
        outfile.writelines(lines)

这种方法可以使用任意数量的输入文件。

Python - 使用\ n来配对来自2个文件的行

4 个答案: