string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A6%81%E8%B4%A6%E6%8A%80%E5%B7%A7%E6%B1%82%E9%AB%98%E4%BA%BA%E6%8C%87%E7%82%B9 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
要账技巧求高人指点
