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?來源:程序化99
參考：
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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);
{高點}
A2:=REF(L,N)=LLV(L,2*N+1);
B2:=FILTER(A2,N);
C2:=BACKSET(B2,N+1);
D2:=FILTER(C2,N);
{低點}
E1:=(REF(LLV(L,2*N),1)+REF(HHV(H,2*N),1))/2;
E2:=(H+L)/2;
{高低點出現在同一K線上時可作取舍}
H1:=(D1 AND NOT(D2 AND E1>=E2)) OR ISLASTBAR OR BARSCOUNT(C)=1;
L1:=(D2 AND NOT(D1 AND E1<E2));?
H2:=D1 AND NOT(D2 AND E1>=E2);
X1:=REF(BARSLAST(H1),1)+1;
F1:=IF(BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IF(L1,L,10000),X1))=1,1,0);
G1:=F1>REF(F1,1);
I1:=BACKSET(G1,2);
LD:=I1>REF(I1,1);
{過濾后低點}
L2:=LD OR ISLASTBAR OR BARSCOUNT(C)=1;
X2:=REF(BARSLAST(L2),1)+1;
F2:=IF(BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IF(H2,H,0),X2))=1,1,0);
G2:=F2>REF(F2,1);
I2:=BACKSET(G2,2);
HD:=I2>REF(I2,1);
{過濾后高點}
R1:=BACKSET(ISLASTBAR,BARSLAST(HD)+1);
S1:=R1>REF(R1,1);
{前一高}
T1:=BACKSET(ISLASTBAR,BARSLAST(LD)+1);
U1:=T1>REF(T1,1);
{前一低}
R2:=BACKSET(S1,REF(BARSLAST(HD),1)+2);
S2:=R2>REF(R2,1);
{前二高}
T2:=BACKSET(U1,REF(BARSLAST(LD),1)+2);
U2:=T2>REF(T2,1);
{前二低}
T3:=BACKSET(U2,REF(BARSLAST(LD),1)+2);
U3:=T3>REF(T3,1);
{前三低}
T4:=BACKSET(U3,REF(BARSLAST(LD),1)+2);
U4:=T4>REF(T4,1);
{前四低}
R3:=BACKSET(S2,REF(BARSLAST(HD),1)+2);
S3:=R3>REF(R3,1);
{前三高}
R4:=BACKSET(S3,REF(BARSLAST(HD),1)+2);
S4:=R4>REF(R4,1);
{前四高}
短期壓力:TRENDLINES(S2,H,S1,H),NODRAW;
DRAWLINE1(S2,H,S1,H,1),COLORRED;
短期支撐:TRENDLINES(U2,L,U1,L),NODRAW;
DRAWLINE1(U2,L,U1,L,1),COLORGREEN;
中期壓力:TRENDLINES(S3,H,S2,H),NODRAW;
DRAWLINE1(S3,H,S2,H,1),COLORYELLOW;
中期支撐:TRENDLINES(U3,L,U2,L),NODRAW;
DRAWLINE1(U3,L,U2,L,1),COLORGREEN;
長期壓力:TRENDLINES(S4,H,S3,H),NODRAW;
DRAWLINE1(S4,H,S3,H,1),COLORFF00FF;
長期支撐:TRENDLINES(U4,L,U3,L),NODRAW;
DRAWLINE1(U4,L,U3,L,1),COLORGREEN;
DRAWICON(S1,H*1.01,2);
DRAWICON(S2,H*1.01,2);
DRAWICON(S3,H*1.01,2);
DRAWICON(S4,H*1.01,2);
DRAWICON(U1,L*0.99,1);
DRAWICON(U2,L*0.99,1);
DRAWICON(U3,L*0.99,1);
DRAWICON(U4,L*0.99,1);
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