/// <summary> /// 获取指定附件id的相关附件信息 /// </summary> /// <param name="aid">附件id</param> /// <returns>附件信息</returns> public static Goodsattachmentinfo GetGoodsAttachmentsByAid(int aid) { return(DTO.GetGoodsattachmentInfo(DbProvider.GetInstance().GetGoodsAttachmentsByAid(aid))); }