string(282) "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%E5%91%BD%E5%90%8D%E4%B8%8D%E5%90%8C%E7%9A%84%E6%96%87%E4%BB%B6%E5%90%8D%E5%AD%97 => Failed to connect to 14.18.46.51 port 38044: Connection refused"
如何批量命名不同的文件名字
