string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=wifi%E6%97%81%E8%BE%B9%E6%98%BE%E7%A4%BA%E4%B8%80%E4%B8%AA6%2C%E8%BF%9E%E6%8E%A5%E4%B8%8A%E6%97%A0%E7%BD%91%E7%BB%9C => Failed to connect to 101.89.159.206 port 38187: Connection refused"
wifi旁边显示一个6,连接上无网络
