string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E4%BC%9A%E5%88%B7%E9%A2%98%E8%83%BD%E8%BF%87%E5%90%97 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
注会刷题能过吗
