咨詢內(nèi)容：
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N:=5;A1:=REF(H,N)=HHV(H,2*N+1);B1:=FILTER(A1,N);C1:=BACKSET(B1,N+1);D1:=FILTER(C1,N);A2:=REF(L,N)=LLV(L,2*N+1);B2:=FILTER(A2,N);C2:=BACKSET(B2,N+1);D2:=FILTER(C2,N);E1:=(REF(LLV(L,2*N),1)+REF(HHV(H,2*N),1))/2;E2:=(H+L)/2;H1:=(D1 AND NOT(D2 AND E1>=E2)) OR ISLASTBAR OR BARPOS=1;L1:=(D2 AND NOT(D1 AND E1<E2));H2:=D1 AND NOT(D2 AND E1>=E2);X1:=REF(BARSLAST(H1),1)+1;F11:=BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IFELSE(L1,L,1000000),X1));F1:=IFELSE(F11=1,1,0);G1:=F1>REF(F1,1);I1:=BACKSET(G1,2);LD:=I1>REF(I1,1);DRAWICON(LD,L,'CO4';L2:=LD OR ISLASTBAR OR BARPOS=1;X2:=REF(BARSLAST(L2),1)+1;F22:=BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IFELSE(H2,H,0),X2));F2:=IFELSE(F22=1,1,0);G2:=F2>REF(F2,1);I2:=BACKSET(G2,2);HD:=I2>REF(I2,1);DRAWICON(HD,H,'CO5';LJZ:=IFELSE(HD,H,L);POLYLINE(HD||LD,LJZ,COLORGRAY),DASH;
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