public int Update(Books obj, string whereStr)
{
throw new NotImplementedException();
}
/// <summary>
/// 增加数据
/// </summary>
/// <param name="obj"></param>
/// <returns>返回刚插入数据的ID</returns>
public int Add(Books obj)
{
bse.Books.Add(obj);
bse.SaveChanges();
return obj.Id;
}