sheet2里的a1= =AVERAGE(INDIRECT("Sheet1!A"&1+(ROW()-1)*3&":A"&3+(ROW()-1)*3)) 下拉
=average(INDIRECT("sheet1!"&(ADDRESS(ROW()*3-2,COLUMN(),,,))&":"&(ADDRESS(ROW()*3,COLUMN(),,,))))
sheet2里的a1公式: =AVERAGE(OFFSET(Sheet1!$A$1,ROW()*3-3,,3))