六位的电子密码锁，模拟银行卡的密码输入，有三次输入密码的机会，输入正确开锁，三次输错使其锁定并发出警报(The six bit electronic password lock, which simulates the password input of the bank card, has the opportunity to enter the password three times, enter the correct unlock, and lock up the three times and send the alarm.)