string(258) "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%99%BE%E9%A2%98%E8%AE%B2%E5%9D%9B%E8%A7%86%E9%A2%91%E8%AE%B2%E8%A7%A3 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
一建百题讲坛视频讲解
