string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%96%87%E4%BB%B6%E5%90%8D%E6%80%8E%E6%A0%B7%E6%89%B9%E9%87%8F%E4%BF%AE%E6%94%B9 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
文件名怎样批量修改
