string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88b%E7%AB%99%E4%BC%A0%E8%A7%86%E9%A2%91%E5%BE%88%E6%85%A2 => Received HTTP code 403 from proxy after CONNECT"
为什么b站传视频很慢
