Py3在多个字符串中查找常用单词

import re

def find_common_words(strings, common_words):
    result = {}
    for word in common_words:
        count = 0
        for string in strings:
            count += len(re.findall(r'\b{}\b'.format(word), string, re.IGNORECASE))
        result[word] = count
    return result

strings = [
    "Python is a popular programming language.",
    "I love using Python for web development.",
    "Python has a rich set of libraries for data analysis.",
    "Python is widely used in the field of artificial intelligence."
]

common_words = ["Python", "programming", "development", "analysis", "artificial intelligence"]

result = find_common_words(strings, common_words)
print(result)