string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E6%97%B6%E9%97%B4%E8%83%BD%E5%B9%B2%E7%82%B9%E4%BB%80%E4%B9%88 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
有时间能干点什么
