string(275) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%87%8D%E5%A4%8D%E9%93%BA%E8%B4%A7%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%E8%B7%A8%E5%BA%97%E9%93%BA%E7%9A%84%E6%83%85%E5%BD%A2 => Received HTTP code 403 from proxy after CONNECT"
重复铺货是否存在跨店铺的情形
