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(C,0.15);
F3:=IF((F1> REF(F1,1)),100,0);
PARTLINE(C,F3),COLORCYAN;//下來就買,上去就賣
PARTLINE(C,MA(F3,2)),COLORCYAN;
DRAWTEXT(FILTER(F3,100),20,'上去就買,下來就賣,未來數据，判斷趨勢'),COLORGREEN;
DRAWTEXT(ISLASTBAR and F3,20,'上買,下賣'),COLORGREEN;

未来函数，不要也罢了。