参考：
RSV:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*100;//收盘价与N周期最低值做差，N周期最高值与N周期最低值做差，两差之间做比值。
K:SMA(RSV,3,1),NODRAW;//RSV的移动平均值
REFLINE:80,50,20;
B1:=BARSLAST(CROSS(K,80))+1,NODRAW;
B2:=BARSLAST(CROSSDOWN(K,80))+1,NODRAW;
A1:=BARSLAST(CROSS(K,50))+1,NODRAW;
A2:=BARSLAST(CROSSDOWN(K,50))+1,NODRAW;
D1:=BARSLAST(CROSS(K,20))+1,NODRAW;
D2:=BARSLAST(CROSSDOWN(K,20))+1,NODRAW;
AH:VALUEWHEN(A2=1&&A1<B2,HV(H,A1)),NODRAW,COLORWHITE;
AHN:=BACKSET(A2=1&&A1<B2,REF(HHVBARS(H,A1),1)+2);
BH:VALUEWHEN(A2=1&&A1<B2,REF(HHV(H,B1),B2)),COLORYELLOW,NODRAW;
BHN:=BACKSET(A2=1&&A1<B2,REF(HHVBARS(H,B1),B2)+B2+1);
DRAWLINE1(CROSS(BHN,0.5)&&AH<BH,H,CROSS(AHN,0.5),H,0);
CL:VALUEWHEN(A1=1&&A2<D1,LV(L,A2)),COLORMAGENTA,NODRAW;
CLN:=BACKSET(A1=1&&A2<D1,REF(LLVBARS(L,A2),1)+2);
DL:VALUEWHEN(A1=1&&A2<D1,REF(LLV(L,D2),D1)),COLORGREEN,NODRAW;
DLN:=BACKSET(A1=1&&A2<D1,REF(LLVBARS(L,D2),D1)+D1+1);
DRAWLINE1(CROSS(DLN,0.5)&&CL>DL,L,CROSS(CLN,0.5),L,0);
A:=BACKSET(ISLASTBAR,SUMBARS(CROSS(BHN,0.5)&&AH<BH,1));
DRAWWAVERULER(CROSS(BHN,0.5)&&AH<BH&&A,H,CROSS(AHN,0.5),H,1,H,0.3,COLORGREEN);
DRAWWAVERULER(CROSS(BHN,0.5)&&AH<BH&&A,H,CROSS(AHN,0.5),H,1,H,0.6,COLORGREEN);
DRAWWAVERULER(CROSS(BHN,0.5)&&AH<BH&&A,H,CROSS(AHN,0.5),H,1,H,0.9,COLORGREEN);
AA:=BACKSET(ISLASTBAR,SUMBARS(CROSS(DLN,0.5)&&CL>DL,1));
DRAWWAVERULER(CROSS(DLN,0.5)&&CL>DL&&AA,L,CROSS(CLN,0.5),L,1,L,0.3,COLORRED);
DRAWWAVERULER(CROSS(DLN,0.5)&&CL>DL&&AA,L,CROSS(CLN,0.5),L,1,L,0.6,COLORRED);
DRAWWAVERULER(CROSS(DLN,0.5)&&CL>DL&&AA,L,CROSS(CLN,0.5),L,1,L,0.9,COLORRED);
