本指标的特点：两个买点，适合于不同操作类型的朋友。红箭头适用于激进型的，
“介入点”适用于稳健型的，仍符合“只吃中间，放弃两头”的操作思路。
使用本指标请结合其他趋势指标分析判断。
N:=74;
M:=3;
PC:(C+REF(C,1)+O)/3;
高:=REF(HHV(H,N),M);
低:=REF(LLV(L,N),M);
H19:=高-(高-低)*0.191;
H38:=高-(高-低)*0.382;
H中:=高-(高-低)*0.5;
H61:=高-(高-低)*0.618;
H80:=高-(高-低)*0.809;
顶点:REFDATE(高,DATE),COLORWHITE;
%19.8:REFDATE(H19,DATE),COLORYELLOW;
%38.2:REFDATE(H38,DATE),COLORMAGENTA;
%50:REFDATE(H中,DATE),COLORRED;
%61.8:REFDATE(H61,DATE),COLORMAGENTA;
%80.9:REFDATE(H80,DATE),COLORYELLOW;
低点:REFDATE(低,DATE),COLORWHITE;
DRAWTEXT(ISLASTBAR,顶点,'顶点'),COLORWHITE;
DRAWTEXT(ISLASTBAR,%19.8,'％19.8安全'),COLORYELLOW;
DRAWTEXT(ISLASTBAR,%38.2,'％38.2'),COLORMAGENTA;
DRAWTEXT(ISLASTBAR,%50,'％50'),COLORRED;
DRAWTEXT(ISLASTBAR,%61.8,'％61.8'),COLORMAGENTA;
DRAWTEXT(ISLASTBAR,%80.9,'％80.9'),COLORYELLOW;
DRAWTEXT(ISLASTBAR,低点,'低点'),COLORWHITE;
A:=(3*C+L+O+H)/6;
B:(20*A+19*REF(A,1)+18*REF(A,2)+17*REF(A,3)+16*REF(A,4)+15*REF(A,5)+
14*REF(A,6)+13*REF(A,7)+12*REF(A,8)+11*REF(A,9)+10*REF(A,10)+9*REF(A,11)+8*REF(A,12)
+7*REF(A,13)+6*REF(A,14)+5*REF(A,15)+4*REF(A,16)+3*REF(A,17)+2*REF(A,18)+
REF(A,20))/210,COLORWHITE,LINETHICK1;
D:MA(B,15),COLORYELLOW,LINETHICK1;
VAR4:=(2*CLOSE+HIGH+LOW)/4;
R1:=MA(CLOSE,26);
R2:=R1-0.25;
空方线:=R2;
多方线:=EMA(CLOSE,3);
DRAWICON(CROSS(多方线,空方线),多方线*0.95,1);
VAR1A:=CROSS(MA(CLOSE,5),MA(CLOSE,30));
DRAWTEXT(VAR1A,LOW-LOW*0.01,'A'),COLORRED;
DRAWTEXT(VAR1A,LOW-LOW*0.03,'介入点'),COLORYELLOW;
