=sumifs(C:C,B:B,"walnut",A:A,"Praco")名字可以换成单元格引用==========================sum(sumifs(C:C,B:B,{"Walnut","Black"},A:A,"Praco"))
=sumproduct(A2:A25="Praco")*(B2:B25="Walnut")*(C2:C25)
=SUMIFS(C:C,A:A,"Walnut",B:B,"Praco")