===============跟单区，id, item,qty,link,price,contact============没有电话不下单哈，可以站短
数量就是买一送一以后的数量。
跟单
跟团
item： GNC Hair, Skin & Nails Formula
qty: 2
link:http://www.gnc.com/product/index.jsp?productId=3943821&cp=4046473.13384936
price:19.9 buy 1 get 1 free
contact:81982736
item： GNC Hair, Skin & Nails Formula
qty: 2
link:http://www.gnc.com/product/index.jsp?productId=3943821&cp=4046473.13384936
price:19.9 buy 1 get 1 free
contact:81982736
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