=sum(1/countif(B8:K9,B8:K9))

=sum(1/countif(B8:K9,B8:K9)) 如何理解excel数组公式 {=sum(1/countif(B8:K9,B8:K9))} excel 函数=SUM((SUMIFS(Z:Z,B:B,"签约",V:V,">"&B8-1,V:V," 公式“=(YEAR(TODAY())-YEAR(B8))*12+(MONTH(TODAY())-MONTH(B8))-1 =SUM(LOOKUP(5,A1:A8,B1:B8),LOOKUP(5,A2:A9,D2:D9))是什么意思 球墨管K9级是什么意思? 球墨铸铁管k9是什么意思 EXCEL ｛=IF(OR($A9=0,$E9=0,S=0,$N9>S$7,$K9=SUM($R9:R9)),IF(L= 球墨铸铁管DN400,壁厚K9, 1吨等于多少米 EXCEL表格中Average(C2:C8)与SUM(B2:B8)/SUM(A2:A8)的区别是什么? 条件：B7=B8且都等于0则B9不作显示；B8＝0但B7大于0则B9＝100%；B8大于0则B9=(B7-B8)/B8. 请问行家,K9料是什么?K9水晶料和K9玻璃料有区别吗?K9水晶和K9玻璃有区别吗?