EXCEL：如果A1=DD10，DD30,DD60，DD90，DDT,DDG时，B1都显示是，当A1=DD或者DDH时，B1显示否

=if(or(a1="DD10",a1="DD30",a1="DD60",a1="DD90",a1="DDT",a1="DDG"),"是",if(or(a1="DD",A1="DDH"),"否",""))

或者

=IF(OR(A1={"DD10","DD30","DD60","DD90","DDT","DDG"}),"是",IF(OR(A1={"DD","DDH"}),"否",""))