/// <summary>
/// 选择被排除以外的列（用于列多时排除某几列的情况）
/// </summary>
/// <param name="filter"></param>
/// <returns></returns>
public QuerySection <T> Select(IFieldFilter filter)
{
Field[] fields = new Field[0];
if (filter != null)
{
fields = filter.GetFields(fromSection.GetSelectFields());
}
return(Select(fields));
}
