string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BC%81%E4%B8%9A%E8%A2%AB%E9%BB%91%E5%AE%A2%E6%94%BB%E5%87%BB%E4%B8%A5%E9%87%8D%E5%90%97 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
企业被黑客攻击严重吗
