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%E7%9C%9F%E7%9A%84%E5%8F%AF%E4%BB%A5%E6%8A%A4%E7%9C%BC%E5%90%97 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
投影仪真的可以护眼吗
