地铁售票系统，基于VHDL，可实现站点设置，站点选择，选择购票数量，找零等一系列功能。-Metro ticketing system, based on VHDL, allows site settings, site selection, choose the number of tickets, Keep the change and a series of functions.

基于C语言设计的火车售票系统，采用通用链表等，单向，实现火车购票退票余票查询等功能-C-based language designed to train ticketing system, to adopt a common list and so on, one-way, to achieve more than a train ticket refund ticket inquiries and other functions