Python有一个自然语言处理的工具包,叫做NLTK(Natural Language ToolKit),可以帮助你实现自然语言挖掘,语言建模等等工作.但是没有NLTK,也一样可以实现简单的词类统计. 假如有一段文字: a = 'Return a list of the words in the string S, using sep as the delimiter string. If maxsplit is given, at most maxsplit splits are done.…