string(287) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=dns%E8%AE%BE%E7%BD%AE%E6%88%90114.114.114%E4%BC%9A%E5%AF%BC%E8%87%B4%E7%BD%91%E7%BB%9C%E4%B8%8D%E7%A8%B3%E5%AE%9A%E5%90%97 => Failed to connect to 14.18.46.51 port 38206: Connection refused"
dns设置成114.114.114会导致网络不稳定吗
