CDH1:=(2*CLOSE+HIGH+LOW)/4;
CDH2:=EMA(CDH1,4);
CDH3:=EMA(CDH2,4);
CDH4:=EMA(CDH3,4);
VAD1:=(CDH4-REF(CDH4,1))/REF(CDH4,1)*1000;
VAD2:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
VAD3:=SMA(SMA(VAD2,3,1),3,1)/28.57;
VAD4:=EMA(VAD3,5);
操盘:=3*VAD3-2*VAD4;
A1:=CROSS(操盘,VAD3) AND VAD3<2.1 AND C>O;
VAD1>=0 AND REF(VAD1<0,1) AND A1;
