string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%BB%9C%E9%94%80%E5%94%AE%E6%98%AF%E5%95%A5%E5%B7%A5%E4%BD%9C => Failed to connect to 101.89.143.195 port 38205: Connection refused"
网络销售是啥工作
