string(292) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E6%89%B9%E9%87%8F%E9%87%8D%E5%91%BD%E5%90%8D%E6%96%87%E4%BB%B6%E6%A0%BC%E5%BC%8F%E4%B8%8D%E5%8F%98%E5%8A%A8 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
如何批量重命名文件格式不变动
