string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E6%8C%89%E9%A1%BA%E5%BA%8F%E9%87%8D%E5%91%BD%E5%90%8D%E5%BE%88%E5%A4%9A%E6%96%87%E4%BB%B6%E5%91%A2 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
怎么按顺序重命名很多文件呢
