import pandas as pd
import numpy as np
data1 = pd.read_excel("F:/分层数据.xlsx",skiprows=[0,1],header=None)
data2 = data1.set_index([0,1])
col = pd.MultiIndex.from_product([["第一季度","第二季度","第三季度","第四季度"],["第一期","第二期","第三期"]])
data3 = pd.DataFrame(data2.values,columns=col,index=data2.index)
data3
#层级求和
data3.sum(axis=1 #方向,默认行
,level=1 #层级
,skipna=False #是否跳过缺失值
)