把这个指标出现S时做个选股公式

卖出线:=98; 阶段卖:=96; 趋势:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA (SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1); 底部:=10; 买入警戒:STICKLINE(趋势=阶段卖,OPEN,CLOSE,6,1),LINETHICK2,COLORBLUE; 卖出:DRAWICON(CROSS(卖出线,趋势),HIGH,9); MA(CLOSE,5); MA(CLOSE,12); DRAWICON(CROSS((REF(HIGH,1)+REF(LOW,1))/2,MA(CLOSE,20)+2*STD(CLOSE,20)),HIGH*1.035,1); DRAWTEXT(CROSS((REF(HIGH,1)+REF(LOW,1))/2,MA(CLOSE,20)+2*STD(CLOSE,20)),HIGH*1.02,'卖吧'); J:MA(CLOSE,20)+2*STD(CLOSE,20); Y:MA(CLOSE,20)-2*STD(CLOSE,20); DRAWICON(CROSS((REF(HIGH,1)+REF(LOW,1))/2,J),H*1.035,4); DRAWICON(CROSS(Y,(REF(HIGH,1)+REF(LOW,1))/2),L/1.035,5);

爱约股解答：

趋势:=3*SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1)-2*SMA

        (SMA((CLOSE-LLV(LOW,27))/(HHV(HIGH,27)-LLV(LOW,27))*100,5,1),3,1);

底部:=10;

xg:CROSS(趋势,底部);