string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BF%91%E8%A7%86%E5%A4%9A%E5%B0%91%E5%BA%A6%E4%B8%8D%E8%83%BD%E8%80%83%E9%A9%BE%E7%85%A7 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
近视多少度不能考驾照
