python 中逗号分隔字符串的文本操作

Question

我想读取文本文件test.txt，其中 txt 的格式为

'Jon, Stacy, Simon, ..., Maverick'

我想将字符串保存到 test2.txt 中作为

'Jon AS t1_Jon, Stacy AS t1_Stacy, Simon AS t1_Simon, ..., Maverick AS t1_Maverick'

可能偶尔会有一个换行符，我想忽略它。我将如何以高效简单的方式做到这一点？

PS: 想不出更合适的标题，你会怎么命名？

Answer 1

一个不错的方法是使用 re 模块。

import re

s_in = 'apple, banana, orange,\n mango, guava'
words = re.split(r'[,\n]\s*',s_in)
s_out = ', '.join([f'{word} AS t1_{word}' for word in words])
print(s_out)

结果：

apple AS t1_apple, banana AS t1_banana, orange AS t1_orange, mango AS t1_mango, guava AS t1_guava

Answer 2

你可以试试这个

with open('test.txt') as f:

_lines = ''
for line in f.readlines():
    words = line.split(',')
    for word in words:
        _word = f'{word} AS t1_{word}'
        _lines +=_word
        
    _lines +='\n'
    
print(_lines)

结果

Jon AS t1_Jon Stacy AS t1_ Stacy Simon AS t1_ Simon ... AS t1_ ... Maverick
 AS t1_ Maverick

python 中逗号分隔字符串的文本操作

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