string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BD%B1%E5%93%8D%E4%BA%AC%E4%B8%9C%E5%8F%91%E5%B1%95%E7%9A%84%E5%9B%A0%E7%B4%A0 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
影响京东发展的因素
