使用正则表达式进行匹配和计数，找到重复出现的单词。

示例代码：

import re

def detect_duplicated_words(string): words = re.findall(r'\b\w+\b', string) unique_words = set(words) result = {} for word in unique_words: count = words.count(word) if count > 1: result[word] = count return result

测试

string = "Hello world world world" duplicated_words = detect_duplicated_words(string) print(duplicated_words) # 输出 {'world': 3}