N:=20;
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(xiàn)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:=BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IF(L1,L,10000),X1));
G1:=F1>REF(F1,1); I1:=BACKSET(G1,2);
LD:=I1>REF(I1,1),LINETHICK0;{過濾后低點}
L2:=LD OR ISLASTBAR OR BARSCOUNT(C)=1;
X2:=REF(BARSLAST(L2),1)+1;
F2:=BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IF(H2,H,0),X2));
G2:=F2>REF(F2,1);
I2:=BACKSET(G2,2);
HD:=I2>REF(I2,1),LINETHICK0;{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}
壓力1:DRAWLINE(S2,H,S1,H,1),COLORMAGENTA,LINETHICK1;
支撐1:=DRAWLINE(U2,L,U1,L,1),COLORMAGENTA,LINETHICK1;

壓力2:DRAWLINE(S3,H,S2,H,1),COLORGREEN;
支撐2:=DRAWLINE(U3,L,U2,L,1),COLORGREEN;         

壓力3:=DRAWLINE(S4,H,S3,H,1),COLORGREEN,LINETHICK2;
支撐3:=DRAWLINE(U4,L,U3,L,1),COLORYELLOW,LINETHICK2;

GD3:REF(H,BARSLAST(S3)),DOTLINE,COLORLIGREEN;
GD2:REF(H,BARSLAST(S2)),DOTLINE,COLORLIMAGENTA;
GD1:REF(H,BARSLAST(S1)),DOTLINE,COLORYELLOW;

DRAWNUMBER(ISLASTBAR,GD1,GD1),COLORYELLOW;
DRAWNUMBER(ISLASTBAR,GD2,GD2),COLORLIMAGENTA;
DRAWNUMBER(ISLASTBAR,GD3,GD3),COLORLIGREEN;

NOTEXTM250:=MA(C,250),COLORBROWN;
M60:MA(C,60),COLORLIRED;
M30:MA(C,30),COLORLIBLUE;
M20:MA(C,20),COLORWHITE;
DRAWNUMBER(ISLASTBAR,MA(C,30),MA(C,30)),COLORLIBLUE;

C50:=COST(50),COLORGRAY;
WW:=DRAWNUMBER(ISLASTBAR,C50,C50),COLORLIGRAY;

N:=20;
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 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:=BACKSET(H1 AND COUNT(L1,X1)>0,LLVBARS(IF(L1,L,10000),X1));
G1:=F1>REF(F1,1);
I1:=BACKSET(G1,2);
LD:=I1>REF(I1,1),LINETHICK0;
L2:=LD OR ISLASTBAR OR BARSCOUNT(C)=1;
X2:=REF(BARSLAST(L2),1)+1;
F2:=BACKSET(L2 AND COUNT(H2,X2)>0,HHVBARS(IF(H2,H,0),X2));
G2:=F2>REF(F2,1);
I2:=BACKSET(G2,2);
HD:=I2>REF(I2,1);
R1:=BACKSET(ISLASTBAR,BARSLAST(HD)+1);
S1:=R1>REF(R1,1);
GD1:=REF(H,BARSLAST(S1));
{股價在盤中突破GD1線或者最高價等于GD1，收盤價在GD1線下}
H>=GD1 AND C<GD1;