多年来，本人使用的唯一指标，特别好用，长、中、短线都好操作。
{趋势顶底指标QSDD}
VAR1:=(CLOSE-LLV(LOW,36))/(HHV(HIGH,36)-LLV(LOW,36))*100;
VAR2:=SMA(VAR1,3,1);
VAR3:=SMA(VAR2,3,1);
VAR4:=SMA(VAR3,3,1);
趋势线:VAR3;
慢速线:VAR4;
VAR5:=CROSS(VAR2,VAR3) AND VAR3<20;
STICKLINE(VAR5,0,20,5,0),COLORRED;
DRAWICON(FILTER(VAR5,10)=1,14,1);
VAR6:=CROSS(VAR3,VAR4) AND VAR3>80;
STICKLINE(VAR6,80,100,5,0),COLORGREEN;
DRAWICON(FILTER(VAR6,5)=1,86,2);
VAR7:=CROSS(VAR2,VAR3) AND VAR3>80 AND VAR3>VAR4;
STICKLINE(VAR7,80,100,5,0),COLORYELLOW;
DRAWICON(FILTER(VAR7,5)=1,95,1);
VAR8:=CROSS(VAR4,VAR3) AND VAR3<20 AND VAR3<VAR2;
STICKLINE(VAR8,0,20,5,0),COLORWHITE;
DRAWICON(FILTER(VAR8,5)=1,5,2);
VAR9:=CROSS(VAR2,VAR4) AND VAR3<80 AND VAR3>VAR4;
STICKLINE(VAR9,40,60,5,0),COLORBLUE;
DRAWICON(FILTER(VAR9,3)=1,50,1);
VARA:=CROSS(VAR4,VAR2) AND VAR3>20 AND VAR3<VAR2;
STICKLINE(VARA,40,60,5,0),COLORMAGENTA;
DRAWICON(FILTER(VARA,3)=1,50,2);
DRAWTEXT(CROSS(趋势线,慢速线) AND 趋势线<20,趋势线,'买'),COLORRED;
DRAWTEXT(CROSS(慢速线,趋势线) AND 趋势线>80,趋势线,'卖'),COLORGREEN;
