可实现简易的学生管理系统的，增删改查，可以输入学生照片，可以显示日期时间，还有简易抽奖系统。-Simple student management system, additions and deletions to the investigation, can input student photo, you can display the date and time, there is a simple lottery system.

统计Linux系统中文件属性,权限，修改或创建日期，最后做一个汇总。-Statistics Linux system file attributes, permissions, modification or creation date, last a summary.

电子日历系统界面可以显示 时间和日期 可以看日历-Electronic calendar system interface can display the time and date you can see the calendar