string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%AF%E4%BB%A5%E5%8F%91%E4%BA%AC%E4%B8%9C%E5%BF%AB%E9%80%92%E7%9A%84%E8%BD%AF%E4%BB%B6 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
可以发京东快递的软件
