BHG1:=MA(CLOSE,20);

BHG2:=IF(REF(CLOSE,1)*1.093-CLOSE < 0.01,1,0);

买好股:CROSS(CLOSE,BHG1) AND BHG2 AND BHG1 > REF(BHG1,1) AND REF(BHG1,1) > REF(BHG1,2) AND REF(BHG1,2) > REF(BHG1,3);