mimasuo

代码说明：

说明：  使用CT107D开发板开发的密码锁程序，程序实现功能有，使用矩阵按键输入密码，密码正确，数码管显示开门状态，开门状态下可修改密码。(Using the code lock program developed by ct107d development board, the program has the following functions: input the password by using the matrix key, the password is correct, the nixie tube shows the opening state, and the password can be modified in the opening state.)