//往数据库中添加装备
 public Card add(int userId, int cardCode)
 {
     Card card = new Card();
     card.user_id = userId;
     card.gd_code = cardCode;
     card.level = 1;
     card.exp = 0;
     card.additional = 0;
     card.Add();
     userCard[userId].Add ( card.id, card );
     return card;
 }