DIFF:=Ema(CLOSE,12)-EMA(CLOSE,27);
DEA:=EMA(DIFF,8);
macd:=2*(DIFF-DEA);
A:=BArslAst(REF(crOSS(DIFF,DEA),1));
背:=REF(CLOSE,A+1)>CLOSE AND DIFF>REF(DIFF,A+1) AND CROSS(DIFF,DEA);
RSV:=(CLOSE-LLV(LOW,11))/(HHV(HIGH,13)-LLV(LOW,11))*100;
K:=SMA(RSV,3,1);
D:=SMA(K,3,1);
J:=3*K-2*D;
A1:=BARSLAST(REF(CROSS(J,K),1));
底背:=REF(CLOSE,A1+1)>CLOSE AND J>REF(J,A1+1) AND CROSS(J,K);
金叉:=IF(SUM(CROSS(K,D)AND D<23,15)>=2 AND CROSS(K,D)AND C>O,1.1,0);
XG:背&&底背&&金叉;