string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=qq%E5%8A%A0%E5%A5%BD%E5%8F%8B%E6%9C%89%E5%87%A0%E7%A7%8D%E6%96%B9%E6%B3%95%E5%90%97%E6%80%8E%E4%B9%88%E5%8A%A0 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
qq加好友有几种方法吗怎么加
