功能：【1】时钟显示（包括小时，分钟） 二十四/十二小时制模式转换；校时功能（应能手动校时）；整点报时。

【2】闹钟提示设定3组闹钟当设定时间到时，闹钟响铃，同时屏幕出现一组十进制两位的加减乘除运算，此时使用者可通过屏幕下方的一排按键进行输入，如结果正确则停止响铃。若出现使用者不理闹钟或结果一直无法正确的情况，那么闹钟将隔5分钟响一次，直到答对为止。通过计算可以在短时间内让使用者达到清醒状态，实现闹钟的目。

-Function: 【1】 clock display (including the hours, minutes)　round/twelve hours the system mode switching　the campus functions (should be able to manual timing)　whole point timekeeping. 【2】 3 groups set alarm, alarm clock when the set time, the alarm clock rings and the screen appeared a group of two decimal addition and subtraction, multiplication and division, this time users through a row of buttons below the screen for input, If the result is correct to stop ringing. If there has been a user can not ignore the alarm clock or the results of the correct situation, then the alarm will sound once every 5 minutes, until the correct date. By calculating the user in a short time to awake and realize the purpose alarm clock.