E1:=(ref(llv(l,2*N),1)+ref(hhv(h,2*N),1))/2; E2:=(h+l)/2;{高低点出现在同一K线上时可作取舍}
H1:=(D1 AND not(D2 AND E1 =E2)) OR barstatus=2 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);{过滤后低点}
L2:=LD OR barstatus=2 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);{过滤后高点}
R1:=backset(barstatus=2,barslast(HD)+1);
S1:=R1 ref(R1,1); {前一高}
T1:=backset(barstatus=2,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}
短期压力:drawline(S2,h,S1,h,1),Colorred;
短期支撑:drawline(U2,l,U1,l,1),Colorgreen;
HH1:=if(s2,H,ref(H,BARSLAST(s2)));
HH2:=if(s1,H,ref(H,BARSLAST(s1)));
LL1:=if(u2,l,ref(l,BARSLAST(u2)));
LL2:=if(u1,l,ref(l,BARSLAST(u1)));
上线:HH1+(HH2-HH1)*BARSLAST(s2)/(BARSLAST(s2)-BARSLAST(s1));
下线:LL1+(LL2-LL1)*BARSLAST(U2)/(BARSLAST(U2)-BARSLAST(u1));
