input: ǰ(1100225,0,110000000), ǰ(1100226,0,110000000),ǰ(1100301,0,110000000),ǰ(1100302,0,110000000),(1100720,0,110000000), (1100721,0,110000000),(1100722,0,110000000),(1100723,0,110000000); 
DRAWLINE(date=ǰ,C,date=ǰ,h ,1),coloraaffdd;
DRAWLINE(date=ǰ,C,date=ǰ,C ,1),colorBLUE;
DRAWLINE(date=ǰ,C,date=ǰ,C ,1),colorgreen;
DRAWLINE(date=ǰ,C,date=ǰ,L ,1),coloryellow;
DRAWLINE(date=ǰ,C,date=ǰ,c ,1),colorred;
ʼ:=YEAR=2010 and MONTH=2 and DAY=25;
ref(C,BARSLAST(ʼ));

DRAWLINE(date=,h,date=,h ,1),coloraaffdd;
DRAWLINE(date=,h,date=,L ,1),colorBLUE;
DRAWLINE(date=,h,date=,L ,1),colorgreen;
DRAWLINE(date=,h,date=,L ,1),coloryellow;
ʼ1:=YEAR=2010 and MONTH=7 and DAY=20;
ref(H,BARSLAST(ʼ1));