指标不会只出在最高或最底，需要成交量的确认

V4:=REF(CLOSE,1);
V5:=SMA(MAX(CLOSE-V4,0),7,1)/SMA(ABS(CLOSE-V4),7,1)*100;
V6:=CROSS(79,V5);
V7:=FILTER(V6,4);
DRAWICON(V7,HIGH*1.0001,10);
DRAWTEXT(V7,HIGH*1.0002,'绝卖'),COLORgreen;
V66:=CROSS(v5,20);
V76:=FILTER(V66,4);
DRAWICON(V76,l*0.9999,10);
DRAWTEXT(V76,l*0.9998,'绝买'),COLORred;