public virtual void Save()
 {
     //this.DBSave();
     EntityOperationExtensions.DBSave(this.GetType(), this);
 }
 /// <summary>
 /// 保存
 /// </summary>
 /// <typeparam name="T">类型</typeparam>
 /// <param name="entity">实体</param>
 public static void Save <T>(T entity) where T : IEntity
 {
     EntityOperationExtensions.DBSave(typeof(T), entity);
 }