精确波段：趋势指标，提示买卖点（无未来）
该指标买点相对卖点来说更加准确
具体的操作方法是：底部出现买入提示买入，尤其是出现两次买入提示可参与
源码
80,CIRCLEDOT;
20,CIRCLEDOT;
8,CIRCLEDOT;
0;100;
VAR1:=(CLOSE-LLV(LOW,9))/(HHV(HIGH,9)-LLV(LOW,9))*50;
AA: (EMA(VAR1,3))*2;
BB:MA(AA,3);
STICKLINE(AA =BB,53,47,4,0),COLOREE82EE;
STICKLINE(AA BB,53,47,4,1),COLORB3EE3A;
STICKLINE(CROSS(AA,20),58,42,2,0),COLORB23AEE;
VAR2:8,colorgreen,LINETHICK0;
IF(CROSS(AA,VAR2),40,0),STICK,LINETHICK2;
DRAWICON(CROSS(AA,VAR2),40,13);
DRAWICON(CROSS(80,AA),80,14);
IF(AA =8,5,0),STICK,COLORFF00FF,LINETHICK5;
STICKLINE(CROSS(80,AA),80,70,0.2,0),COLOR00FF00;
DRAWICON(CROSS(80,AA),70,2);
DRAWTEXT(CROSS(80,AA),68,'卖');
DRAWTEXT(CROSS(AA,VAR2),49,'买');
DRAWICON(CROSS(AA,20),30,1);
STICKLINE(CROSS(AA,20),20,30,0.2,0),colorred;
DRAWICON(CROSS(AA,20),20,13);
DRAWICON(CROSS(AA,VAR2),0,13);
DRAWTEXT(CROSS(AA,20),62,'加仓');
