Python文本到wordlist写入文件

Question

我正在开发基于 txt 文件的词表生成器。 当我将输出打印到屏幕时它可以工作，但当我尝试将输出写入文件时失败。

另外，有没有办法避免在我的列表中两次插入同一个词？

import re
file = open('pg23620.txt', 'r',encoding="utf8")
# .lower() returns a version with all upper case characters replaced with lower case characters.
text = file.read().lower()
file.close()
# replaces anything that is not a lowercase letter, a space, or an apostrophe with a space:
text = re.sub('[^a-z\ \']+', " ", text)
words = list(text.split())
print(*words, sep='\n')
f = open("List.txt","a")
f.writelines(*words,sep='\n')
f.close()

Answer 1

writelines() 不允许您指定行分隔符，解决方法是使用'\n'.join() 添加行分隔符，然后使用.write()。例如：

import re

file = open('pg23620.txt', 'r',encoding="utf8")
# .lower() returns a version with all upper case characters replaced with lower case characters.
text = file.read().lower()
file.close()
# replaces anything that is not a lowercase letter, a space, or an apostrophe with a space:
text = re.sub('[^a-z\ \']+', " ", text)
words = set(text.split())  # use a set to remove duplicate words
print(*words,sep='\n')
f=open("List.txt","a")
print(words)
f.write('\n'.join(words))
f.close()

更好的布局是：

import re

with open('pg23620.txt', 'r', encoding="utf8") as f_input:
    text = f_input.read().lower()

text = re.sub('[^a-z\ \']+', " ", text)
words = set(text.split())  # use a set to remove duplicate words
print(*words, sep='\n')

with open("List.txt", "a") as f_output:
    f_output.write('\n'.join(words))

使用set() 将删除重复的单词。使用with() 后，您无需手动关闭文件，因为它是自动完成的。