/// <summary>
/// 批量删除
/// </summary>
/// <returns><c>true</c>, if delete was batched, <c>false</c> otherwise.</returns>
/// <param name="entity">Entity.</param>
public bool BatchDelete(List <T> entity)
{
//_context.Remove(entity);
//foreach (var item in entity)
//{
// _context.Remove(item);
//}
_context.RemoveRange(entity);
//_context.SaveChanges();
return(SaveChanges());
}