快线:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
慢线:=SMA(快线,3,1);
BB:=IF(BArslAST(crOSS(慢线,快线))>=3 AND CROSS(快线,慢线) AND 慢线<30,20,0);
B买:BB>0;
快线:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;
慢线:=SMA(快线,3,1);
BB:=IF(BArslAST(crOSS(慢线,快线))>=3 AND CROSS(快线,慢线) AND 慢线<30,20,0);
B买:BB>0;