一字涨停:=(C-REF(C,1))/REF(C,1)>=0.95 AND H=L AND C=O; 一字跌停:=(REF(C,1)-C)/REF(C,1)>=-0.95 AND H=L AND C=O; 无一字板:=NOT(一字涨停 OR 一字跌停); 收盘前不计算:=IF(ISLASTBAR,FROMOPEN>220,V); 乘风地量:V<=REF(LLV(V,30),1) AND V<=HHV(V,30)/3 AND 无一字板 AND MIN(C,O)