string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%87%AA%E7%94%B1%E8%81%8C%E4%B8%9A%E8%83%BD%E5%B9%B2%E7%82%B9%E5%95%A5 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
自由职业能干点啥
