string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E7%9B%B4%E6%92%AD%E8%AF%BE%E5%92%8C%E5%BD%95%E5%88%B6%E8%AF%BE%E6%9C%89%E5%8C%BA%E5%88%AB%E5%90%97 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
一建直播课和录制课有区别吗
