1.设计三个按钮,分别为K0,K1,K2

2.K0：暂停/启动数字循环显示

3.K1：显示的初始值递增1.变化范围，从自己的学号后两位开始，+10为止。

4.K2：显示的初始值递增1.变化范围，从自己的学号后两位开始，-10为止，如果不足10，则到0为止。

5.K1与K2的功能必须是在K0暂停状态时才能起作用。

6.在LCD上显示初始值。当前值及按下的键值。

7.当改变初始值时，必须在LCD上同时显示出来

-1. The design three buttons, respectively K0, K1, K2



2. K0: pause/start digital cyclic display



3. K1: show increasing initial value of 1. The scope of change, from their own student id hind two began,+ 10 so far.



4. K2: show increasing initial value of 1. The scope of change, from their own student id hind two beginning, so far-10, if less than 10, is so far to 0.



5. K1 and the function of the K2 to be in the state K0 pause can be effective.



6. Is displayed on LCD and the initial value. The current value and press the key values.



7. When the initial value, must be the same in LCD display