21:00-----01:00的高开低收
开:valuewhen(todaybar=1,open);
高:valuewhen(time=050000,hhv(h,todaybar));
低:valuewhen(time=050000,llv(l,todaybar));
收:valuewhen(time=050000,close);
9:00----15:00的开高低收
nn:barslast(time=closetime(1));
开:valuewhen(nn=1,open);
高:valuewhen(time=190000,hhv(h,nn));
低:valuewhen(time=190000,llv(l,nn));
收:valuewhen(time=190000,close);