出现三角形为买入信号提示，共有3中，波段高点还会有逃顶提示。
N:=10;
MA5:=MA(C,5),colorwhite;
MA10:=MA(C,10),COLORFF00FF;
MA20:=MA(C,20),COLOR00FF00;
MA30:=MA(C,30),coloryellow;
MA120:=SMA(C,120,1),COLOR0000FF;
ZH520:=ABS(MA5-MA20)/MA20*100<=N;
ZH530:=ABS(MA5-MA30)/MA30*100<=N;
QSXS1:=MA5>REF(MA5,1);
QSXS2:=MA20>REF(MA20,1);
QSXS3:=MA30>REF(MA30,1);
DTPL:=MA20>MA30 AND MA30>MA120;
LYHT:=DTPL AND QSXS2 AND QSXS3 AND NOT(QSXS1) AND REF(QSXS1,1);
老鸭回头买:LYHT*50,COLORFF00FF;
WR5:=100*(HHV(H,5)-C)/(HHV(H,5)-LLV(L,5));
WR6:=100*(HHV(H,6)-C)/(HHV(H,6)-LLV(L,6));
WR:=80-(WR5*3+WR6*2)/5;
坑:IF(WR<0,WR,0),coloryellow;
LYT:=DTPL AND QSXS2 AND QSXS3 AND COUNT(QSXS1,4)<=1;
GJHS:=C>MA5 AND ((QSXS1 AND NOT(REF(QSXS1,1))) OR C>REF(C,3));
LYKK:=GJHS AND (ZH520 OR ZH530) AND LYT;
买:(LYKK AND NOT(REF(LYKK,1)))*50,COLOR00FF00,LINETHICK2;
优选:(买 AND COUNT((MA10>MA20),5)=5)*100,coloryellow,LINETHICK2;
DRAWTEXT(老鸭回头买,10,'●'),COLORFF00FF;
DRAWTEXT(老鸭回头买,10,'¤'),COLORFF00FF;
STICKLINE(WR<0,WR,0,2,0),coloryellow;
STICKLINE(WR<-10,WR,-10,2,0),colorwhite;
DRAWTEXT(买,80,'★买'),COLOR00FF00;
DRAWICON(优选,10,4);
VARC:=SMA(MAX(C-REF(C,1),0),6,1)/SMA(ABS(C-REF(C,1)),6,1)*100;
DRAWICON(CROSS(82,VARC),80,5);
VAR6:=REF(C,1);
VAR7:=SMA(MAX(C-VAR6,0),6,1)/SMA(ABS(C-VAR6),6,1)*100;
DRAWTEXT(CROSS(84,VAR7),100,'逃顶'),coloryellow ;
