How to pay for mobile phone 12306 clients? Where is the mobile 12306 payment function?

After we buy the train ticket, we will see one after clicking the payment, confirming the payment interface, there will be a lot of payment methods here.

There are a lot of payment banks here, we can choose to open their own network of silver interface.

If the first time does not pay success, you can also go to my order to find the order and pay.

PS: Small series did not use this software, but heard that we need to install a UnionPay in the mobile phone software can only be realized after payment, in 12306 of the phone is just an interface but need the mobile phone app port support can be OH.