How to take the train, I believe many friends are very interested in this problem, the following to introduce to you, hope to help you.
You can choose to apply for a temporary ID card, and you only need to explain your situation to the relevant staff before taking the train.
Then provide their own personal information and family information, check and verify with the computer can apply for a temporary ID card.
Note that temporary ID cards are valid.
This information is taken from experience without authorization