string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=c2%E5%B7%A6%E5%8F%B3%E5%80%92%E5%BA%93%E6%80%8E%E6%A0%B7%E5%80%92 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
c2左右倒库怎样倒
