Imessage SMS from iphone, come as soon as it is turned off. Can I see the text message when I turn it on?

You can receive it, but it's not an imessage message, it's a general message.

Let me show you how to use imessage: If there is no network (including cellular network and wireless network) that can't receive imessage messages, you can only accept ordinary messages, and the sender will send them in the form of ordinary messages. Only when both parties have networks can they send and receive imessage messages normally, otherwise they can only be sent and received as ordinary messages.

I still can't get the message after booting, which should be the operator's problem, because this message was sent by the operator, not through imessage.