AA:=(O+H+L+C)/4;
A1:=HHV(AA,15);
A2:=LLV(AA,15);
A3:=A1-A2;
A4:=EMA((AA-A2)/A3,2)*100;
B1:=HHV(AA,60);
B2:=LLV(AA,60);
B3:=B1-B2;
B4:=EMA((AA-B2)/B3,2)*100;
C1:=HHV(AA,240);
C2:=LLV(AA,240);
C3:=C1-C2;
C4:=EMA((AA-C2)/C3,2)*100;
向下:=(a4ref(c4,1))=3;
同时上拐:REF(向下,1) AND 向上;
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