string(240) "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%A5%BD%E8%BF%98%E6%98%AF%E6%B6%B2%E6%99%B6%E5%A5%BD => Failed to connect to 101.89.159.206 port 38187: Connection refused"
投影好还是液晶好
