LINB:=IF(CLOSE REF(LOW,1),1,0); 楼梯线:IF(LINA=1,LLV(LOW,2),REF(LLV(LOW,2),BARSLAST(LINA=1))); IF(楼梯线 =REF(楼梯线,1),楼梯线,DRAWNULL),COLORGREEN,LINETHICK2; IF(楼梯线 =REF(楼梯线,1),楼梯线,DRAWNULL),COLORRED,LINETHICK2;
