import warnings
warnings.filterwarnings('ignore',category=UserWarning)
import nltk.tokenize as tk
import nltk.corpus as nc
import nltk.stem.snowball as sb
import gensim.models.ldamodel as gm
import gensim.corpora as gc
doc = []
with open('/Users/youkechaung/Desktop/算法/数据分析/AI/day02/day02/data/topic.txt','r') as f:
for line in f