Legal analysis: Generally speaking, there is no preferential policy, but for the purchase of train tickets, you can use your student ID card to buy them, and there will be some discounts. College students are part of social groups and are managed by the state and local governments. College students refer to a group of people who are receiving basic higher education and professional higher education, have not yet graduated or have graduated from higher education and entered the society. As the frontier group of new technologies and new ideas in society, college students, as senior professionals trained by the state, represent young and energetic people, are the main force of pioneering construction and creation, and are the main group to promote social progress.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 595 A sales contract is a contract in which the seller transfers the ownership of the subject matter to the buyer and the buyer pays the price.

Article 596 The contents of a sales contract generally include terms such as name, quantity, quality, price, time limit for performance, place and method of performance, packing method, inspection standard and method, settlement method, contract terms and their effects.