Yes, if you bought the ticket online, you can change it directly online before you have time to pick up the paper ticket. If you have picked up the ticket and want to change it, you have to go to the manual counter to change it. . There are also special circumstances. I once took the high-speed train from Changsha to Nanchang. After passing the security check and waiting in the waiting room, my ticket disappeared before boarding the train. I couldn't get on the train and had to change my ticket. I went to the manual window for ticket changes. As a result, I have already picked up the ticket and cannot provide a paper ticket. It cannot be changed. Moreover, because I purchased today’s ticket online before, I cannot buy the next ticket online. Finally, I have to go to the ticket window to buy the ticket. It was invalidated, so I bought a new ticket and got on the bus.

The Liverpool-Manchester Railway, which started operation on September 15, 1830, already runs regular passenger trains. The first train ticket was issued on September 17, 1830, when the Liverpool-Manchester Railway officially transported passengers. This train ticket is 88 mm long and 60 mm wide. Only the station name is printed on the ticket, and the departure time, travel date and issuer's signature are all written by the ticket seller. At the same time, special platform tickets were issued to commemorate the opening.

Since then, the railways that have opened one after another have followed the example of the Liverpool-Manchester Railway and issued various tickets of different sizes. Although some tickets have the company name or ride class printed in addition to the station name, the departure time, ride date and other necessary information are still filled in by the ticket seller. In addition, each railway company issued life-long free tickets made of ivory or gold and silver to its directors to show their privileges.

Reference materials:

Baidu Encyclopedia Tickets