string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%83%B3%E4%B9%B0%E4%B8%AA%E6%9C%BA%E5%99%A8%E8%87%AA%E5%B7%B1%E5%88%9B%E4%B8%9A => Failed to connect to 101.89.143.195 port 38175: Connection refused"
想买个机器自己创业
