string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%AB%99%E5%BB%BA%E8%AE%BE%E7%9A%84%E8%BF%87%E7%A8%8B%E5%8C%85%E6%8B%AC%E5%87%A0%E4%B8%AA%E9%98%B6%E6%AE%B5 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
网站建设的过程包括几个阶段
