string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E4%B8%8A%E5%85%BC%E8%81%8C%E8%83%BD%E5%81%9A%E5%95%A5%E5%B7%A5%E4%BD%9C => Failed to connect to 14.18.117.71 port 38093: Connection refused"
网上兼职能做啥工作
