SELECT * FROM coin_shop a WHERE
(SELECT COUNT(*) FROM coin_shop b WHERE b.goods_type=a.goods_type AND b.cs_id>a.cs_id ) <2
这样查出来,按照goods_type分别显示每种的前n个
SELECT * FROM coin_shop a WHERE
(SELECT COUNT(*) FROM coin_shop b WHERE b.goods_type=a.goods_type AND b.cs_id>a.cs_id ) <2
这样查出来,按照goods_type分别显示每种的前n个