G stands for high-speed rail, which has its own track and runs at the fastest speed; D stands for bullet train, which refers to a locomotive or carriage that has a driving device and can produce a certain traction force running on the track, and its speed is second only to that of high-speed rail. C stands for intercity express train, which refers to the passenger train between the neighboring important cities or urban agglomerations. Generally, the whole running distance is relatively short, the ride time is short, the route is few cities, and the sleeper car is not configured. Z stands for one-stop direct express train, a kind of train, unless for special reasons, generally will not be late; T is for express, which is train, a kind of train that is faster than normal; K stands for fast, slightly faster than local trains.
1, 1-7 digits are the ticket office code, 7 digits, the first 5 digits are the station code, the last 2 digits are the ticketing method code, the ticketing method code code range 00-99.
2, 8-10 digits for the ticket window code, 3 digits, ticket window code coding range 001-255.
3, 11-14 digits of financial collection closing date, MMDD format, 4 digits.