BOLL:=MA(CLOSE,20);
UB:=BOLL+2*STD(CLOSE,20);
LB:=BOLL-2*STD(CLOSE,20);
AA:=CROSS(C,LB);
BBB:=CROSS(H,UB);
TJ:=COUNT(AA,12)=1;
XG:TJ AND BBB;
BOLL:=MA(CLOSE,20);
UB:=BOLL+2*STD(CLOSE,20);
LB:=BOLL-2*STD(CLOSE,20);
AA:=CROSS(C,LB);
BBB:=CROSS(H,UB);
TJ:=COUNT(AA,12)=1;
XG:TJ AND BBB;