我通过spyder更新了wordnet程序包，以了解是否发生了残局化。我看不到它多次尝试。任何帮助
In [28]: import nltk
In [29]: nltk.download('wordnet')
[nltk_data] Downloading package wordnet to
[nltk_data] C:\Users\1025990\AppData\Roaming\nltk_data...
[nltk_data] Package wordnet is already up-to-date!
Out[29]: True
In [30]: from nltk.stem import WordNetLemmatizer
In [31]: lemmatizer=WordNetLemmatizer()
In [32]: print(lemmatizer.lemmatize("caring"))
caring
In [33]: print(lemmatizer.lemmatize("forecasting"))
forecasting
In [34]: print(lemmatizer.lemmatize("running"))
running