string(258) "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%8F%AA%E5%90%AC%E5%9F%BA%E7%A1%80%E7%8F%AD%E8%83%BD%E8%BF%87%E5%90%97 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
注会只听基础班能过吗
