五个在C环境下编写的的程序，一个运动员记录系统，还有一个火车票管理系统，我感觉是很有用的-At 5 C environment prepared by the procedure, a system of record players, there is a ticket management system, I feel are very useful

火车票管理系统 火车票管理系统 火车票管理系统 -Train ticket management system management system management system for train ticket train ticket train ticket management system management system management system for train tickets