string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%9A%E5%9C%B0%E6%8E%A8%E5%BA%94%E8%AF%A5%E5%85%B7%E5%A4%87%E4%BB%80%E4%B9%88%E6%9D%A1%E4%BB%B6 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
做地推应该具备什么条件
