string(306) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%83%B3%E6%8A%95%E8%B5%84%E5%81%9A%E7%82%B9%E5%B0%8F%E7%94%9F%E6%84%8F%2C%E4%B8%8D%E7%9F%A5%E9%81%93%E4%BB%80%E4%B9%88%E9%80%82%E5%90%88 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
想投资做点小生意,不知道什么适合
