the high-speed rail tickets bought by AliPay are invoiced in this way, and the operation steps are as follows:

1. Open the Alipay APP and enter the "My" interface.

2. click "invoice center" to enter the invoice management interface.

3. click the "add invoice" button in the upper right corner, select "train ticket", and then select the order to be invoiced.

4. Then fill in the invoice information, including invoice header, tax number, invoiced amount, etc.

5. after clicking "submit application", the system will automatically process the invoice application. After waiting for the invoice to be issued successfully, you can view and download the invoice in Alipay. Alipay is a mobile payment application software under Ant Financial, which provides electronic payment services in various scenarios, including transferring money to others, paying utilities, recharging mobile phones, and paying for shopping.