string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B7%A8%E5%A2%83%E7%94%B5%E5%95%86%E5%88%B0%E5%BA%95%E6%98%AF%E5%B9%B2%E4%BB%80%E4%B9%88%E7%9A%84%E5%B7%A5%E4%BD%9C => Failed to connect to 101.89.117.144 port 38005: Connection refused"
跨境电商到底是干什么的工作
