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%E5%A5%BD%E8%BF%98%E6%98%AF%E6%98%BE%E7%A4%BA%E5%B1%8F%E5%A5%BD => Failed to connect to 101.89.117.144 port 38005: Connection refused"
投影仪好还是显示屏好
