@lhg8353 for i in range(len(Year)):
total1[Year[i]] = explore1.iloc[int(i*len(explore1)/5):int((i+1)*len(explore1)/5),:].mean()
total2[Year[i]] = explore2.iloc[int(i*len(explore1)/5):int((i+1)*len(explore1)/5),:].mean()
total3[Year[i]] = explore3.iloc[int(i*len(explore1)/5):int((i+1)*len(explore1)/5),:].mean()
雪球
