On some high-end trains, the restaurant will provide a rich selection of dishes, including Chinese and western food, snacks, fruits, drinks and so on. On some ordinary trains, restaurants may only provide basic meals, such as box lunch, noodles and soup.
Of course, there are also some problems in the restaurants on the train, such as relatively high food prices, limited choices and poor sanitary conditions. Therefore, when you take the train, you can choose whether to eat on the train according to your personal needs and budget.