string(288) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A7%BB%E5%8A%A8%E5%AE%BD%E5%B8%A6dns%E8%AE%BE%E7%BD%AE%E5%93%AA%E4%B8%AA%E6%9C%80%E5%A5%BD%E6%9C%80%E5%BF%AB%E9%80%9F => Failed to connect to 101.89.159.206 port 38087: Connection refused"
移动宽带dns设置哪个最好最快速
