=========跟单区（id,item, qty, link, price, contact)=============
跟单
ID: 囧在国大
Item: GNC Hair, Skin, & Nails Program 30 Day Program
qty: 4
link: http://www.gnc.com/product/index.jsp?productId=3943819
price: 9.99x4
contact: 85901601
Item: GNC Hair, Skin, & Nails Program 30 Day Program
qty: 4
link: http://www.gnc.com/product/index.jsp?productId=3943819
price: 9.99x4
contact: 85901601
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