string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%87%AA%E5%B7%B1%E5%88%9B%E4%B8%9A%E8%83%BD%E5%81%9A%E7%82%B9%E5%95%A5 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
自己创业能做点啥
