string(276) "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%E6%9C%89%E4%BB%80%E4%B9%88%E8%A1%A8%E7%8E%B0%E5%BD%A2%E5%BC%8F => Failed to connect to 101.89.166.210 port 38089: Connection refused"
网站被攻击有什么表现形式
