BDDL1:=SMA((CLOSE-LLV(LOW,19))/(HHV(HIGH,19)-LLV(LOW,19))*100,5,1);
BDDL2:EMA(BDDL1,3),NODRAW;
BDDL3:=EMA(BDDL2,2);
BDDL4:=EMA(BDDL3,2);
BDDL5:=CROSS(BDDL3,BDDL4);
BDDL6:=CROSS(BDDL4,BDDL3);
STICKLINE(BDDL2>20 AND BDDL2<50,BDDL2-2,BDDL2+2,5,0),COLORYELLOW;
BDDL7:IF(CROSS(BDDL2,8) OR CROSS(BDDL2,15),BDDL2*3.0,0),COLORMAGENTA,LINETHICK2;
BDDL8:IF(CROSSDOWN(BDDL2,92) OR CROSSDOWN(BDDL2,75),BDDL2/3,0),COLORGREEN,LINETHICK2;
STICKLINE(BDDL6 AND BDDL6<20,BDDL2,100,1,0),COLORGREEN;
BDDL9:IF(BDDL6 AND  BDDL3<80,BDDL2,0),COLORYELLOW,NODRAW;
STICKLINE(BDDL5 AND BDDL3>20,BDDL2,0,1,0),COLORRED;
BDDL10:IF(BDDL5 AND BDDL3>20 ,BDDL2,0),COLORRED,NODRAW;
STICKLINE(BDDL2>80,BDDL2-2,BDDL2+2,5,0),COLORRED;
STICKLINE(BDDL2<20,BDDL2-2,BDDL2+2,5,0),COLORBLUE;
STICKLINE(BDDL2>50 AND BDDL2<80,BDDL2-2,BDDL2+2,5,0),COLORMAGENTA;
STICKLINE(BDDL6,BDDL2,100,1,0),COLORGREEN;
DRAWTEXT(BDDL10=BDDL2,BDDL2,'始');
DRAWTEXT(BDDL9=BDDL2,BDDL2,'终');



//            7HZB.COM 七禾指标 
//本指标公式仅作为知识分享，供交流学习使用，不构成任何投资建议，不作为投资依据。