string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E7%BD%91%E7%AB%99%E6%80%BB%E6%98%AF%E8%A2%AB%E6%94%BB%E5%87%BB => Failed to connect to 14.18.117.71 port 38069: Connection refused"
为什么网站总是被攻击
