public void DefaultEcs_EntitySet()
 {
     foreach (ref readonly DefaultEntity entity in _defaultEntitySet.GetEntities())
     {
         ++entity.Get <DefaultComponent>().Value;
     }
 }
        public void DefaultEcs_EntitySet()
        {
            ReadOnlySpan <DefaultEntity> entities = _defaultEntitySet.GetEntities();

            for (int i = 0; i < entities.Length; i++)
            {
                ++entities[i].Get <DefaultComponent>().Value;
            }
        }