string(249) "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%E5%92%8C%E6%B6%B2%E6%99%B6%E7%94%BB%E8%B4%A8%E5%AF%B9%E6%AF%94 => Failed to connect to 101.89.117.144 port 38017: Connection refused"
投影和液晶画质对比
