每等级都有=号是做不到的,优等品中C<=0.03,在合格品中应为0.03
C2输入=IF(and(A2<=0.03,B2<=0.3),"优等品",IF(and(A2>0.03,A2<=0.05,B2>0.3,B2<=0.5),"合格品",IF(and(A2>0.05,A2<=0.08,B2>0.5,B2<=0.6),"合格品","不合格品")
用if函数就可以,C2=if(αnd(A2<=0.03,B2<=0.3),″优等品″,if(and(A2>0.03,A2<=0.05,B2>0.3,B2<=0.5),″合格品″,if(and( ),″准合格品″,"不合格品″)))。准合格条件自己填完整。