为趋势指标写个选股公式

编写要求：

1. RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*10; K:=SMA(RSV,3,1),COLORWHITE; D:=SMA(K,3,1),COLORYELLOW; J:3*K-2*D,COLORYELLOW; IF(JREF(J,1),J,DRAWNULL),COLORFF00FF,LINETHICK1; 探针1:=0.01*MA(AMOUNT,13)/MA(VOL,13); 探针2:=(CLOSE-探针1)/探针1*100,COLORRED,LINETHICK1; DRAWTEXT("ZXNH.ZXNH"=1 AND 探针2<=-2,探针2,'买'),COLORMAGENTA; 请老师在趋势线变黄时做个选股公式

股票网解答：

J:="KDJ.J";

(REF(J<REF(J,1),1) AND J>REF(J,1)) OR (REF(J>REF(J,1),1) AND J<REF(J,1));