string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9D%9C%E6%AF%94%E8%A7%86%E7%95%8C%E5%92%8Chdr%E7%9A%84%E5%8C%BA%E5%88%AB%E5%A4%A7%E5%90%97 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
杜比视界和hdr的区别大吗
