string(272) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%89%8B%E6%9C%BA%E7%BD%91%E7%BB%9C%E6%94%B9%E6%88%90cmtds%E6%9C%89%E4%BB%80%E4%B9%88%E6%84%8F%E4%B9%89 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
手机网络改成cmtds有什么意义
