string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A7%86%E9%A2%91%E6%B8%B2%E6%9F%93%E5%99%A8%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D => Failed to connect to 101.89.143.195 port 38109: Connection refused"
视频渲染器是什么意思
