====跟单（跟单请说明id/contact/item/qty/link/price）id
contact
item
qty (实际要的数量） 比如qty: 2 (buy one get 1 free)
link
price
跟单跟单，希望这次的卵磷脂能买到
1, http://www.gnc.com/product/index.jsp?productId=4271922&cp=4046473.19473336
GNC Women's Evening Primrose Oil 1300
180 Softgel Capsules
265630
Price: $27.99（共2瓶）
2, http://www.gnc.com/product/index.jsp?productId=2133410
GNC Salmon Oil 1000
180 softgels
133911
Price: $14.99（共4瓶）
3, http://www.gnc.com/product/index.jsp?productId=4273789
GNC Herbal Plus® Standardized Ginkgo Biloba
200 Capsules
194721
Price: $29.99（共2瓶）
4, http://www.gnc.com/product/index.jsp?productId=2133422
GNC Triple Lecithin 1200
90 Softgel Capsules
147611
Price: $12.99（共2瓶）
GNC Women's Evening Primrose Oil 1300
180 Softgel Capsules
265630
Price: $27.99（共2瓶）
2, http://www.gnc.com/product/index.jsp?productId=2133410
GNC Salmon Oil 1000
180 softgels
133911
Price: $14.99（共4瓶）
3, http://www.gnc.com/product/index.jsp?productId=4273789
GNC Herbal Plus® Standardized Ginkgo Biloba
200 Capsules
194721
Price: $29.99（共2瓶）
4, http://www.gnc.com/product/index.jsp?productId=2133422
GNC Triple Lecithin 1200
90 Softgel Capsules
147611
Price: $12.99（共2瓶）
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