string(283) "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%E8%87%AA%E8%90%A5%E5%8C%85%E9%82%AE%E7%9A%84%E4%B8%9C%E8%A5%BF%E5%8F%AF%E4%BB%A5%E9%80%80%E5%90%97 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
京东自营包邮的东西可以退吗
