string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B9%BF%E4%B8%9C%E7%99%BD%E4%BA%91%E5%AD%A6%E9%99%A2%E8%AE%A1%E7%AE%97%E6%9C%BA%E5%BC%BA%E5%90%97 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
广东白云学院计算机强吗
