string(274) "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%E4%B9%88%E6%89%B9%E9%87%8F%E4%BF%AE%E6%94%B9%E4%B8%AA%E5%88%AB%E5%AD%97 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
文件名怎么批量修改个别字
