string(257) "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%94%A8%E7%9B%92%E5%AD%90%E7%94%A8%E4%BB%80%E4%B9%88%E4%BF%A1%E5%8F%B7 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
电视用盒子用什么信号
