准确抄底 趋势线:=(C-MA(C,40))/MA(C,40)*100; 准确抄底:((REF(趋势线,1) REF(趋势线,2) AND 趋势线 -25 AND 趋势线 -30) AND 趋势线 =REF(趋势线,1)) OR (REF(CROSS(-25,趋势线),1) AND CROSS(趋势线,-25));