string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8D%96%E6%B2%B9%E7%BF%81%E6%98%AF%E5%B9%B2%E5%98%9B%E7%9A%84 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
卖油翁是干嘛的
