string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%80%A0%E4%BB%B7%E5%AE%89%E8%A3%85%E6%98%AF%E5%81%9A%E4%BB%80%E4%B9%88%E7%9A%84%E5%B7%A5%E4%BD%9C => Failed to connect to 14.18.117.71 port 38093: Connection refused"
造价安装是做什么的工作
