string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%BB%9C%E5%B9%B2%E4%BB%80%E4%B9%88%E8%83%BD%E8%B5%9A%E7%82%B9%E5%B0%8F%E9%92%B1%E5%91%A2%E7%9F%A5%E4%B9%8E => Failed to connect to 125.88.227.171 port 38114: Connection refused"
网络干什么能赚点小钱呢知乎
