string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%9C%B2%E8%90%A5%E5%9F%BA%E5%9C%B0%E9%9C%80%E8%A6%81%E5%8A%9E%E7%90%86%E4%BB%80%E4%B9%88%E8%AF%81%E4%BB%B6%E5%91%A2 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
露营基地需要办理什么证件呢
