b:=cross(C>EMA2(C,10) AND EMA2(C,10)>REF(EMA2(C,10),1),0.5); s:=cross(C<EMA2(C,10) AND EMA2(C,10)<REF(EMA2(C,10),1),0.5); 请帮助做最高最低点连线 (来源:文华财经)