string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AD%A6%E9%9C%B8%E7%AC%94%E8%AE%B0%E8%80%83%E7%A0%94%E4%B8%AD%E7%BB%BC%E9%82%A3%E9%87%8C%E4%B9%B0 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
学霸笔记考研中综那里买
