A:=vol*CLOSE;
B:=SUM(A,1)/SUM(VOL,1);
B1:=ema(B,17);
主力:=(B-B1)*500/B;
VR3:=(CLOSE+HIGH+LOW)/3;
vr4:=EMA(VR3,10);
VR5:=REF(VR4,1);
VAR200:=(CLOSE-LLV(LOW,20))/(HHV(HIGH,20)-LLV(LOW,20))*100;
VAR300:=SMA(SMA(VAR200,3,1),3,1)/28.57;
VAR400:=EMA(VAR300,5);
操盘:=3*VAR300-2*VAR400;
A1:=crOSS(操盘,VAR300) AND VAR300<2.1 AND C>O;
底部:A1 AND 主力<0 AND VR4>=VR5;