=======跟单(id/contact/item/qty/price/link)======新的跟单不一定有折上折的bug价格，跟单默认可以接受3 for 25的价格， 如果下到bug价格，会在查单处更新。
contact
item
qty
price
link
remark
跟单
contact 83228606
item GNC Triple Strength Fish Oil 1500 + GLA
qty 9
price 75
link http://www.gnc.com/product/index.jsp?productId=13005148
remark
contact 83228606
item GNC Women's Ultra Mega 50 Plus
qty 6
price 50
link http://www.gnc.com/product/index.jsp?productId=4033457&cp=4046473.15312306
remark
contact 83228606
item GNC Mega Men 50 Plus
qty 6
price 50
link http://www.gnc.com/product/index.jsp?productId=4033438&cp=4046473.15312306
remark
item GNC Triple Strength Fish Oil 1500 + GLA
qty 9
price 75
link http://www.gnc.com/product/index.jsp?productId=13005148
remark
contact 83228606
item GNC Women's Ultra Mega 50 Plus
qty 6
price 50
link http://www.gnc.com/product/index.jsp?productId=4033457&cp=4046473.15312306
remark
contact 83228606
item GNC Mega Men 50 Plus
qty 6
price 50
link http://www.gnc.com/product/index.jsp?productId=4033438&cp=4046473.15312306
remark
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