string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%86%8C%E4%B8%80%E4%B8%AA%E5%85%AC%E5%8F%B8%E6%AD%A5%E9%AA%A4 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
注册一个公司步骤
