修改以下的代码使其实现中文词性筛选功能#Open the text file text_file = openonline review datatxtrencoding=utf-8#Read the data text = text_fileread#Datatype of the data read print typetextprintn#Print the text printtextpr

#打开文本文件： text_file = open('online review data.txt','r',encoding='utf-8') #读取数据： text = text_file.read() #读取的数据类型： print (type(text)) print("\n")

#打印文本： print(text) print("\n")

#导入所需库： import jieba

#按句子对文本进行分词： sentences = list(jieba.cut(text, cut_all=False)) print("精确模式: " + "/ ".join(sentences))

#打印分词结果： #print(sentences) print(sentences)

import jieba.posseg as pseg tag_filter = ['n'] words_pair = pseg.cut(text) result = [] for word, flag in words_pair: if flag in tag_filter: result.append(word) print("词性过滤完成") print(result