string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A1%AC%E7%9B%98%E4%BD%8E%E6%A0%BC%E5%B7%A5%E5%85%B7%E6%9C%89%E4%BB%80%E4%B9%88%E7%94%A8%E5%90%97 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
硬盘低格工具有什么用吗
