string(227) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=wifi6%E6%8C%87%E7%9A%84%E6%98%AF%E6%97%A0%E7%BA%BF%E5%90%97 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
wifi6指的是无线吗
