string(271) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E6%A0%B7%E6%9F%A5%E6%89%8B%E6%9C%BA%E7%9A%84imei%E7%A0%81%E6%98%AF%E5%90%A6%E6%AD%A3%E7%A1%AE => Failed to connect to 125.88.227.171 port 38062: Connection refused"
怎样查手机的imei码是否正确
