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%E6%B8%85%E6%99%B0%E8%BF%98%E6%98%AF%E6%B6%B2%E6%99%B6%E6%B8%85%E6%99%B0 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
投影清晰还是液晶清晰
