如何在python中按照确切的术语打印单词

Question

我需要在一篇文章中打印“ed”后面的单词。但是，它不能正常工作--我认为"following_word“这个表达式有问题。text.txt文件包含以下文字："Ed timido e cheto ed inesperto“，您能帮我一下吗？

with open("text.txt", "r", encoding="utf8") as rf:
    text=list(rf)

y=["ed"]

for word in text:
    word_list=word.lower().split()
    for x in word_list:
        if x in y:
            following_word=word_list[word_list.index(y) +1]
            print(x+" "+following_word)

其结果应该是：

爱迪欧

艾德·英斯佩托，

Answer 1

1. 为了获得更简洁的解决方案，您可以使用标准的回复 (正则表达式)模块：

import re
search_terms = ["ed"]

for term in search_terms:
    following_words = re.findall(r"%s (\w+)" % term, string.lower())
    print('\n'.join(f'{term} {word}' for word in following_words))

输出：

ed io
ed inesperto

1. 对于您已经拥有的绝对最小数量的更改，请使用枚举，并避免索引超出界限的错误，只需在每一行结束前查看一次：

search_terms = ["ed"]

for words_line in text:
    word_list = words_line.lower().split()
    for i, word in enumerate(word_list[:-1]): # only look until the penultimate character
        if word in search_terms:
            following_word = word_list[i + 1]
            print(x + " " + following_word)

(同一产出)

Answer 2

就像我在评论中所写的，被"ed“分开，如下所示：

string = "Ed io timido e cheto ed inesperto"
for s in string.lower().split("ed "):
    if len(s):
        print(f"ed {s.split()[0]}")