=IF(L3<0.8,0,IF(AND(L3>=0.8,L3<=0.9),J3*0.8*1.2+J3*0.1*3,IF(AND(L3>0.9,L3<=1),J3*0.8*1.2+J3*0.1*3+J3*0.1*4.5,IF(L3>1,J3*0.8*1.2+J3*0.1*3+J3*0.1*0.45+6*(G3-J3)))))
是因为括号位置错误
