=========跟单区（id,item, qty, link, price, contact)=============注明没有8折还要不要
跟单
id：蜗牛菜
item: Coppertone Water Babies Pure & Simple, Sunscreen Lotion, SPF 50
qty: 1
link：http://www.drugstore.com/products/prod.asp?pid=213377&catid=274391
price: $9.89
item: Coppertone UltraGuard Sunscreen Continuous Spray, SPF 50
qty: 2
link：http://www.drugstore.com/coppertone-ultraguard-sunscreen-continuous-spray-spf-50/qxp163887?catid=184131
price: $8.79
contact: 八六47四760
item: Coppertone Water Babies Pure & Simple, Sunscreen Lotion, SPF 50
qty: 1
link：http://www.drugstore.com/products/prod.asp?pid=213377&catid=274391
price: $9.89
item: Coppertone UltraGuard Sunscreen Continuous Spray, SPF 50
qty: 2
link：http://www.drugstore.com/coppertone-ultraguard-sunscreen-continuous-spray-spf-50/qxp163887?catid=184131
price: $8.79
contact: 八六47四760
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