Q:=20;:=100*(C-LLV(L,5))/(HHV(C,5)-LLV(L,5));:=100*(C-LLV(L,10))/(HHV(C,10)-LLV(L,10));中长期:=100*(C-LLV(L,20))/(HHV(C,20)-LLV(L,20));长期:=100*(C-LLV(L,30))/(HHV(C,30)-LLV(L,30));SB:=短期<20 AND 中期<20 AND 中长期<20 AND 长期<20;XG:REF(SB,1) AND OSS(C,REF(MAX(C,O),1));