=========跟单区(id,item, qty, link, price, contact)=============
跟单买二送二
id: 老猫钓鱼
item: GNC Triple Lecithin 1200
qty: buy 8 get 8
link: http://www.gnc.com/product/index.jsp?productId=2133422
price: 8*12.99
contact: 97656839
item: GNC Triple Lecithin 1200
qty: buy 8 get 8
link: http://www.gnc.com/product/index.jsp?productId=2133422
price: 8*12.99
contact: 97656839