string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BD%95%E5%88%B6%E6%B8%B8%E6%88%8F%E8%A7%86%E9%A2%91%E4%B8%8D%E6%8E%89%E5%B8%A7%E7%9A%84%E5%8A%9E%E6%B3%95 => Received HTTP code 403 from proxy after CONNECT"
录制游戏视频不掉帧的办法
