string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E8%A7%86%E7%9B%92%E5%AD%90hdr%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D => Failed to connect to 125.88.227.171 port 38114: Connection refused"
电视盒子hdr是什么意思
