string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8C%97%E9%83%A8%E6%B9%BE%E7%9A%84%E4%BA%BA%E9%83%BD%E5%9C%A8%E5%81%9A%E4%BB%80%E4%B9%88 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
北部湾的人都在做什么
