string(199) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=wifi6%E6%98%AF%E4%BB%80%E4%B9%88%E4%B8%9C%E8%A5%BF => Received HTTP code 403 from proxy after CONNECT"
wifi6是什么东西网!