设计一个通用电子密码锁，具体功能如下：[1]数码输入 [2]数码清除

[3]密码更改 [4]激活电锁

[5]解除电锁-The design of a universal electronic code lock, the specific features are as follows: [1] digital input [2] Digital Clear [3] Password Change [4] to activate electric lock [5] the lifting of electric locks