N1:=10; N2:=20; N3:=30; 強:=(OPEN+CLOSE+HIGH+LOW)/4; BBL1:=HHV(C,N1); BBL2:=HHV(C,N2); BBL3:=HHV(C,N3); BBL1=BBL3 AND REF(BBL1,1) < REF(BBL3,1);
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