給你一個公式做參考----------------------

LC:= REF(C,1);

RSI:SMA(MAX(C-LC,0),14,1)/SMA(ABS(C-LC),14,1)*100,COLORFF00FF;

QS:=HHV(MA(RSI,3),13);

RS:=LLV(MA(RSI,3),13);

VAR1:=BACKSET(REF(QS,2)=HHV(QS,5),3);

VAR2:=CROSS(VAR1,0.9);

VAR3:=BACKSET(REF(RS,2)=LLV(RS,5),3);

VAR4:=CROSS(VAR3,0.9);

壓力:REF(QS,BARSLAST(VAR2)),POINTDOT,COLOR00FF00;

STICKLINE(RSI,REF(QS,BARSLAST(VAR2)),REF(QS,BARSLAST(VAR2)),5,0),COLOR00FF00;

支撐:REF(RS,BARSLAST(VAR4)),POINTDOT,COLOR0087FF;

STICKLINE(RSI,REF(RS,BARSLAST(VAR4)),REF(RS,BARSLAST(VAR4)),5,0),COLOR0087FF;

F1:=ZIG(3,15);

F3:IF((F1> REF(F1,1)),0,90);

DRAWTEXT(FILTER(F3,120),30,"下來就買");