VAR2:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;
VAR3:=SMA(SMA(VAR2,3,1),3,1);
VAR4:=SMA(VAR3,3,1);
VAR5:=3*VAR3-2*VAR4;
底2:VAR3<20 AND VAR4<20 AND crOSS(VAR5,VAR3) AND CROSS(VAR3,VAR4);
VAR2:=(CLOSE-LLV(LOW,21))/(HHV(HIGH,21)-LLV(LOW,21))*100;
VAR3:=SMA(SMA(VAR2,3,1),3,1);
VAR4:=SMA(VAR3,3,1);
VAR5:=3*VAR3-2*VAR4;
底2:VAR3<20 AND VAR4<20 AND crOSS(VAR5,VAR3) AND CROSS(VAR3,VAR4);