string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%AB%99%E8%A2%AB%E6%94%BB%E5%87%BB%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
网站被攻击如何解决
