string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%AC%E4%B8%9C%E7%9A%84%E6%8E%A8%E5%B9%BF%E7%8E%B0%E7%8A%B6 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
京东的推广现状
