string(253) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2020%E5%9B%BD%E8%80%83%E4%B8%AD%E5%85%AC%E7%BD%91%E8%AF%BE%E7%99%BE%E5%BA%A6%E4%BA%91 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
2020国考中公网课百度云
