主题：同一根K线上穿做多，下穿做空，尾盘平仓的写法

if h>=x then buy(holding=0,1,market);

if l<=y then buyshort(holding=0,1,market);

if time0>=timetot0(closetime(0))-5*60 then begin

   sell(1,0,market);

   sellshort(1,0,market);

end