jieba庫有三種模式搜索引擎
精確模式、全模式、搜索引擎模式
spa
- 精確模式:把文本精確的切分開,不存在冗餘單詞
- 全模式:把文本中全部可能的詞語都掃描出來,有冗餘
code
- 搜索引擎模式:在精確模式基礎上,對長詞再次切分 orm
應用實例:blog
代碼:索引
1 import jieba 2 3 file = open('E:/578095023/FileRecv/寒假做業/test.txt', encoding="utf-8") 4 txt = file.read() 5 #words = jieba.lcut(txt) #無空格 6 #words = jieba.lcut(txt,cut_all=True) #有空格 7 words = jieba.lcut_for_search(txt) 8 counts = {} 9 for word in words: 10 if len(word) == 1: 11 continue 12 else: 13 counts[word] = counts.get(word, 0) + 1 14 15 items = list(counts.items()) 16 17 items.sort(key=lambda x: x[1], reverse=True) 18 # items.sort(reverse = True) 19 for i in range(20): 20 word, count = items[i] 21 print(word, count) 22 # print('{0:<10}{1:>5}'.format(word,count))