string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E5%81%9A%E7%BD%91%E7%BB%9C%E8%BF%90%E8%90%A5%E5%B7%A5%E4%BD%9C => Failed to connect to 101.89.159.206 port 38100: Connection refused"
怎样做网络运营工作
