一个经典的密码锁仿真，LED显示，4*4键盘，6位密码-A classical simulation code lock, LED display, 4* 4 keyboard, 6 password

此文件包含了电子密码锁的源代码和利用proteus仿真的文件-This file contains an electronic code lock and use the source code files proteus simulation

基于AT89C51与4*4键盘的密码锁应用， 内含 protuce仿真电路图 C语言源程序 hex文件 keil文件-The AT89C51 and 4* 4 keyboard combination lock application, containing protuce simulation circuit C language source code hex file keil file