string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9C%A8%E7%BD%91%E4%B8%8A%E5%B9%B2%E5%98%9B%E8%83%BD%E8%B5%9A%E9%92%B1 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
在网上干嘛能赚钱
