weixin_43763858的博客

import pandas as pd date=pd.date_range("20200803",periods=6) df=pd.DataFrame(np.arange(24).reshape((4,6)),index=['A','B','C','D'],columns=date) print(df) print(df['20200803'])#选择列 print(df[0:3],df['A':'B'])#选择行 print(df.loc['A'])#根据label选择单行 print(df.loc[: