谁能给我一个成功率高的股票短线选股指标。
q_1:=c-ref(c,1);q_2:=100*ema(ema(q_1,6),6)/ema(ema(abs(q_1),6),6);q_3:=cross(ema(c,19),ema(c,7));q_4:=cross(ema(c,7),ema(c,19));z1:=l=llv(l,barslast(q_3)+1);z2:=llv(l,barslast(q_3)+1);z3:=h=hhv(h,barslast(q_4)+1);z4:=hhv(h,barslast(q_4)+1);q_a:=drawline(z1,z2,z3,z4,0);y1:=h=hhv(h,barslast(q_4)+1);y2:=hhv(h,barslast(q_4)+1);y3:=l=llv(l,barslast(q_3)+1);y4:=llv(l,barslast(q_3)+1);q_b:=drawline(y1,y2,y3,y4,0);tj:=if(q_b<ref(q_b,1) and q_b=q_a,1,0);出击: if(ref(tj,1)=0 and tj>=1,80,10),stick,colorred; 20210311