Can I still surf the internet after my mobile phone is turned off?

It is normal that the data of the mobile phone can't be used after the mobile phone is stopped, that is to say, you can't surf the Internet, but you can still connect to the wireless network, or someone else has opened a hot spot for you, and your mobile phone can also connect to the hot spot. In another case, I don't know about other mobile phones. I use Xiaomi mobile phone, Xiaomi mobile phone can buy wireless network, and you can surf the Internet without a card. In mobile phone settings and wireless networks, the traffic is one yuan and one g, which is still very smart. I have used Xiaomi mobile phone for 78 years, and it is still good.