kdjmacd1:=(high+low+open+close)/(4);kdjmacd3:=(2)*(ema(llv(kdjmacd1,8),13))-kdjmacd1;乾坤线:=(3)*(kdjmacd3)-(2)*(sma(kdjmacd3,9,1));xg:乾坤线>c and 乾坤线<ref(乾坤线,1);
双岛选股公式:{跳空下跌,形成缺口}t1:=ref(h,2)<ref(l,3) and ref(h,1)<ref(l,3);{跳空上涨,形成缺口,两缺口间有共同部分}t2:=l>ref(h,1) and l>ref(h,2);{反转当日,收真阳,最好没有下影线}t3:=c>ref(c,1);选股:t1&&t2&&t3;