string(250) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%80%83%E5%85%AC%E5%8A%A1%E5%91%98980%E8%AF%BE%E7%A8%8B%E5%BF%85%E4%B9%B0%E5%90%97 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
考公务员980课程必买吗
