alter table product_sets add cost_price int(11) comment '原価' after public_price;
alter table products add cost_price int(11) comment '原価' after public_price;
update product_sets set cost_price=14000 WHERE id IN (4,2,3,1,11,13,16,17,12);
update product_sets set cost_price=2799 WHERE id IN (15);
update product_sets set cost_price=1200 WHERE id IN (14);
update product_sets set cost_price=21000 WHERE id IN (5,7,6);
update product_sets set cost_price=7000 WHERE id IN (9,10,8);
