数据分类计数
列表a
from collections import Counter
a = Counter(yi_all) #以字典key的形式存储,并将其计数存储为字典value
b = a.most_common() #从大到小排列的列表
https://blog.youkuaiyun.com/wangkaidehao/article/details/80598570
列表存csv
转换成数据框
name=['name','num']
c=pd.DataFrame(columns=name,data=b)
c.to_csv(r'C:\Users\Administrator\Desktop\tongji.csv',encoding='gbk')
https://blog.youkuaiyun.com/qq_38268886/article/details/80744721