string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%AE%E5%BD%95%E7%94%9F%E6%88%90%E6%80%8E%E4%B9%88%E6%93%8D%E4%BD%9C => Failed to connect to 125.88.227.171 port 38114: Connection refused"
目录生成怎么操作
