string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%8E%E5%8D%8A%E5%A4%9C%E6%9C%89%E4%BB%80%E4%B9%88%E5%B7%A5%E4%BD%9C => Failed to connect to 61.171.74.35 port 38027: Connection refused"
后半夜有什么工作
