明天就是周末了，给大家一个战略型的指标。它是一个反映波段顶部和底部的指标，底部白色柱状线出现买入，顶部白色柱状线出现卖出。同时红柱出现为波段启动点，绿柱出现为降落点。

VARA:=LLV(LOW,35);
 VARB:=HHV(HIGH,30);
 VARC:=EMA((CLOSE-VARA)/(VARB-VARA)*4,4)*25;
趋势: VARC,COLORFF00FF,LINETHICK2;
底背: STICKLINE(VARC<10 AND 100*(HHV(HIGH,14)-CLOSE)/(HHV(HIGH,14)-LLV(LOW,14))>97,0,25,5,0),coloryellow;
顶背: STICKLINE(VARC>90,100,85,10,0),colorred;
 VARD:=87.5;
 VARE:=(VARC-LLV(VARC,4))/(HHV(VARC,4)-LLV(VARC,4))*4*25;
目标位: DRAWTEXT(IF(CROSS(趋势,VARD) AND VARE=100,50,0),56,'目标'),COLORFF00FF;
跑: DRAWTEXT(IF(CROSS(VARD,趋势),87,0),85,'跑'),COLOR00FF00;
卖: DRAWTEXT(IF(CROSS(趋势,VARE) AND 趋势>87,87,0),70,'卖'),COLOR00FF00;
 VAR6:=(2*C+H+L)/4;
 VAR8:=LLV(LOW,30);
 VARA1:=HHV(HIGH,30);
 B:=EMA((VAR6-VAR8)/(VARA1-VAR8)*100,8);
 B1:=EMA(B,5);
 STICKLINE(B>0 AND B-B1>=0,79,80,6,0),COLOR00FF00;
 STICKLINE(B>0 AND B-B1<0,79,80,6,0),co