如何匹配字符串并返回最匹配的单词

这里有几种方法可以做到这一点。首先,你可以把句子分成单词,看看单词中是否包含文本:

all_text = 'some rather long string'
keyword_list = ['str', 'rat', 'me', 'ng']

words = [word for word in all_text.split() if any(key in word for key in keyword_list)]

或者,您可以构建一个正则表达式,该正则表达式将与关键字周围的单词相匹配:

import re

regex = re.compile(fr'\b\w*(?:{"|".join(keyword_list)})\w*\b')
words = re.findall(regex, all_text)

在这两种情况下,输出都是

['some', 'rather', 'long', 'string']

这里有一种方法,使用python而不是panda

import re

#create an OR statement with all the keywords
s='|'.join(keyword_list)

# split the sentence at space, and iterate through it
for w in all_text.split(' '):

# check if word is in the search-words-list
    if (len(re.findall(s, w, re.IGNORECASE) ) >0) :

# print when found
        print (w)

some
rather
long
string