string(267) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B7%A5%E5%8E%82%E6%96%87%E5%91%98%E7%9A%84%E5%9F%BA%E6%9C%AC%E7%94%B5%E8%84%91%E7%9F%A5%E8%AF%86 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
工厂文员的基本电脑知识
