words = jieba.lcut(str) --->列表，词语
count = {}
for word in words:
if len(word)==1:
continue
else:
count[word] = count.get(word,0)+1
函数
jieba.lcut() 分词，中文
str = "ab sld dd"
str.split()
python词频统计
原文：https://www.cnblogs.com/zhuxiang1633/p/9125560.html
