实现了一个集成的密码锁，而且通过九位的密码锁有输入删除清零三个按键进行密码操作的proteus仿真程序图。实现了仿真功能，达到了仿真的目的。使用了at89c52集成芯片。使用了晶振，显示管，有设置密码启动清除确定四个按键。使用了AMPIRE128×64的显示器。(An integrated code lock is implemented, and a proteus simulation program diagram of the password manipulation is performed through the nine bits of cryptographic lock. The simulation function is realized and the purpose of simulation is achieved. The at89c52 integrated chip was used. With the use of the crystal oscillator, the display tube has set up the password start clearance to determine the four keys. Use the ampire128-by-64 display.)