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A:=ma(-100*(HHV(HIGH,34)-CLOSE)/(HHV(HIGH,34)-LLV(LOW,34)),19);
B:=-100*(HHV(HIGH,14)-CLOSE)/(HHV(HIGH,14)-LLV(LOW,14));
D:=EMA(-100*(HHV(HIGH,34)-CLOSE)/(HHV(HIGH,34)-LLV(LOW,34)),4);
长:=A+100;
短:=B+100;
中:=D+100;
低位金叉:=长<15 AND REF(长,1)<15 AND 中<18 AND 短>REF(短,1) AND crOSS(短,长) AND 短>中
AND (REF(短,1)<5 OR REF(短,2)<5 ) AND (中>=长 OR REF( 短,1)<1 );
低位金叉XG:FILTER(低位金叉,20)=1;