例如:=SUM((D3

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例如:=SUM((D3例如:=SUM((D3例如:=SUM((D3=SUMPRODUCT((MOD(COLUMN(D3:AB3),3)=1)*(D3:AB3

例如:=SUM((D3
例如:=SUM((D3

例如:=SUM((D3
=SUMPRODUCT((MOD(COLUMN(D3:AB3),3)=1)*(D3:AB3