制作一个个人日程管理工具。具体要求如下：

（1）　　提供日程的添加、修改、删除功能

一条日程的信息通常包括标题、内容、日期、时间、优先级、提醒方式（提前多少时间提醒，以何种方式提醒）

有些日程安排可能是重复性的，需要设置重复的方式（每天、每周、每月、每年），重复的时间范围

（2）　　提供提醒手段，如提醒时间到达后弹出提醒窗口，播放声音等；

（3）　　提供对日程的检索（例如基于时间范围，基于优先级，基于关键字）

鼓励开发更多的功能

一些参考界面（仅仅是参考）

-Create a personal schedule management tool. Specific requirements are as follows:

(1) agenda to add, modify, delete function

The information usually includes a program title, content, date, time, priority, remind method (how much time in advance to remind, the manner in which alerts)

Some may be repetitive schedule, need to set the repeat basis (daily, weekly, monthly, annually), to repeat the time frame

(2) remind means such as pop-up reminder after reminder time to reach the window, play sound, etc.

(3) the retrieval of the schedule (for example, time-based range, based on priority, based on keywords)

Encourage the development of more features

Some reference interface (only reference)