想编一个通达信的指标公式，请老师帮帮忙

Question

RSV1:=(CLOSE-LLV(LOW,34))/(HHV(HIGH,34)-LLV(LOW,34))*100;
GG:MA(RSV1,3);
RSV2:=(INDEXC-LLV(INDEXL,34))/(HHV(INDEXH,34)-LLV(INDEXL,34))*100;
DP:MA(RSV2,3);
RSV3:=(V-LLV(V,34))/(HHV(V,34)-LLV(V,34))*100;
GGV:MA(RSV3,3);
RSV4:=(INDEXV-LLV(INDEXV,34))/(HHV(INDEXV,34)-LLV(INDEXV,34))*100;
DPV:MA(RSV4,3);
L1:=GG<20 AND DP<20 AND GGV<20 AND DPV<20 AND CROSS(GG,DP) AND CROSS(GGV,DPV);
COUNT(L1,30)>=1;意思是最后两句出错了，想表达的意思是筛选出在30天内，存在GG与DP和GGV与DPV双金叉的票，求大神帮着编写下

Answer 1

RSV1:=(CLOSE-LLV(LOW,34))/(HHV(HIGH,34)-LLV(LOW,34))*100;
GG:=MA(RSV1,3);
RSV2:=(INDEXC-LLV(INDEXL,34))/(HHV(INDEXH,34)-LLV(INDEXL,34))*100;
DP:=MA(RSV2,3);
RSV3:=(V-LLV(V,34))/(HHV(V,34)-LLV(V,34))*100;
GGV:=MA(RSV3,3);
RSV4:=(INDEXV-LLV(INDEXV,34))/(HHV(INDEXV,34)-LLV(INDEXV,34))*100;
DPV:=MA(RSV4,3);
A:=CROSS(GG,DP) AND CROSS(GGV,DPV);
L1:(GGV<20 OR DPV<20 OR GG<20 OR DP<20) AND A;

如果想选出30天内存在符合条件L1的个股，最后再加上这句：
X:EXIST(L1,30);

Answer 2

我估计是前面只有":"号没有"="号包括最后一句共出现3个信号输出，但是最后一句又没有赋值。所以要么把前面的都加"="号，要么最后一句改为
X:IF(COUNT(L1,30)>=1,1,0);