文本文件（.txt文件）与python中列表的连接？

Question

假设我有两个文本文件 1.txt 和 2.txt

1.txt的内容为：

['Hi', 'I', 'am']

和

2.txt的内容为：

['a', 'boy']

如何以高效的方式加入相同内容并将其写入新文件，例如3.txt，应该如下所示：

['Hi', 'I', 'am', 'a', 'boy']

我试过了：

import os

file_list = os.listdir("path")
with open('out.txt', 'a+') as outfile:
   for fname in file_list:
       with open(fname) as infile:
          outfile.write(infile.read())

Answer 1

你可以试试这样的：

inputText = []
for file in ['1.txt','2.txt']:
    with open(file,'r') as file:
        inputText.extend(file.readlines()+['\n'])
with open ('3.txt','w') as output:
    for line in inputText:
        output.write(line)

或

with open ('3.txt','w') as output:
    for file in ['1.txt','2.txt']:
        with open(file,'r') as file:
            for line in file:
                output.write(line)
            output.write('\n')

编辑您的评论：

import re
inputList = []
for file in ['1.txt','2.txt']:
    with open(file,'r') as infile:
        for line in infile:
            inputList.extend(re.sub('[^A-Za-z0-9,]+', '', line).split(","))
print(inputList)
with open('3.txt','w') as outfile:
    for line in inputList:
        outfile.write(line + '\n')

Answer 2

您可以使用json module 从文件中加载 json，因此您将拥有一个包含字符串的列表。
您只需使用 + 运算符连接列表并保存：

import json

final_result = []
for file in ["1.txt", "2.txt"]:
    with open(file, 'r') as fd:
        final_result += json.load(fd)

with open("3.txt", 'w') as fd:
    json.dump(final_result, fd)