string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%95%E5%BD%B1%E4%BB%AA%E6%AF%94%E7%94%B5%E8%A7%86%E5%A5%BD%E5%9C%A8%E5%93%AA%E9%87%8C => Failed to connect to 101.89.159.206 port 38187: Connection refused"
投影仪比电视好在哪里
