string(238) "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%E5%8A%A0%E5%A5%BD%E5%8F%8B%E7%9A%84%E6%AD%A5%E9%AA%A4 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
京东加好友的步骤
