=========跟单区（id,item, qty, link, price, contact)=============
跟单
ID：海绵胖胖
item: GNC Triple Strength Fish Oil 1500 + GLA
qty: 3
Link: 发不了呀~~
price: $25
contact: 83575934
item: GNC Triple Strength Fish Oil 1500 + GLA
qty: 3
Link: 发不了呀~~
price: $25
contact: 83575934
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