说明：  1、 在NMBER INPUT的基础上设计数字密码锁 2、 运行初始密码为学号后8位，密码不正确执行4、5功能 3、 连续3次密码错误，锁定键盘，发出报警指示 4、 输出开锁信号（使用功率开关），LED指示 设置修改密码功能，数据存入24C01EEROM
(1, in NMBER INPUT design based on digital code lock 2, the initial password for the school run after No. 8, the password is not the correct implementation of 4,5 function 3, for 3 times the wrong password, keyboard lock, the police issued instructions 4, output unlock signal (using the power switch), LED Change Password function instructions, data deposited 24C01EEROM)