python中逗号分隔字符串的文本操作

Question

我想读取一个文本文件test.txt，其中txt的格式为

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

我想将字符串作为保存到test2.txt中

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

可能偶尔会有断线，我想忽略这一点。我该如何以一种高效而简单的方式来做这件事？

附言：我想不出一个更合适的标题了，你怎么命名？

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

您可以试用

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