1）能完成开锁功能

2）能实现设置密码的功能

3）用有限状态机的方法编程

4) 作业提交时间：在第14周周日前提交-1) to complete the unlock function 2) set a password to achieve the functions of 3) by the method of finite state machine programming 4) submitted the operating time: 14 weeks in the first week to submit