求助：求高手给个准确的大智慧macd底背离选股指标，是选股用的指标。最好事周线，日线都能用的那种，谢谢_**确的顶背离指标

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选股一：（注意包含了dclose函数，是个移动函数，但是和普通的未来函数有区别）diff:=ema(dclose,12)-ema(dclose,26);dea:=ema(diff,9),colorffff00;macd:=(diff-dea)*2;a1:=barslast(ref(cross(diff,dea),1));a2:=barslast(ref(cross(dea,diff),1));底背离:ref(close,a1+1)>close and diff>ref(diff,a1+1) and cross(diff,dea);选股二：（其实就是把第一个选股公式的dclose改为了close）diff:=ema(close,12) - ema(close,26);dea:=ema(diff,9);macd:=2*(diff-dea);a1:=barslast(ref(cross(diff,dea),1));b1:=ref(c,a1+1)>c and ref(diff,a1+1)<diff and cross(diff,dea);filter(b1>0,5)选股三：diff:=ema(close,12) - ema(close,26);dea:=ema(diff,9);ab:=ref(dea,20);bb:=ref(close,30);低值:=llv(dea,25);选股:cross("kdj.j","kdj.d")and "kdj.d"<30 and dea>ab and dea>低值 and close<bb and 低值<-0.2;