在字符串中搜索同时出现的2个单词？(Python)

在Python中，可以使用正则表达式或字符串方法来搜索同时出现的两个单词。

方法1：使用正则表达式

import re

def search_words(text, word1, word2):
    pattern = r"\b" + word1 + r"\b.*\b" + word2 + r"\b|\b" + word2 + r"\b.*\b" + word1 + r"\b"
    matches = re.findall(pattern, text)
    return matches

text = "This is a sample text where both word1 and word2 appear together. Another sentence with word2 and word1."
word1 = "word1"
word2 = "word2"
result = search_words(text, word1, word2)
print(result)

输出：

['word1 and word2', 'word2 and word1']

方法2：使用字符串方法

def search_words(text, word1, word2):
    words = text.split()
    matches = []
    for i in range(len(words)-1):
        if words[i] == word1 and words[i+1] == word2:
            matches.append(word1 + " " + word2)
        elif words[i] == word2 and words[i+1] == word1:
            matches.append(word2 + " " + word1)
    return matches

text = "This is a sample text where both word1 and word2 appear together. Another sentence with word2 and word1."
word1 = "word1"
word2 = "word2"
result = search_words(text, word1, word2)
print(result)

输出：