中文词频统计

import jieba

news = open('bignews.txt','r').read() 

news_cut = jieba.lcut(news)

dict = {}

for i in set(news_cut):
    dict[i]=news_cut.count(i)
    delete={'的','和','了','在','为','是','为','我', ' ','-','\n','，','。','？','！','“','”','：','；','、','.','‘','’'}

for i in delete:
    if i in dict:
        del dict[i]

nesw_print = sorted(dict.items(), key = lambda d:d[1], reverse = True)

for i in range(20):  
    print(nesw_print[i])