關於「Python collections defaultdict」標籤，搜尋引擎有相關的訊息討論：

Multiple levels of 'collection.defaultdict' in Python - Stack Overflowstackoverflow.com › questions › multiple-levels-of-collecti...collections --- 容器資料型態— Python 3.12.4 說明文件docs.python.org › zh-tw › library › collectionsDefaultdict in Python - GeeksforGeekswww.geeksforgeeks.or