S3CEV40 chamber with the keypad and super terminal, designed a simple password keyboard, the keyboard layout as shown, Claim: 1 When you enter a password, only the "*", 2 to 6 digit password, after more than six, no longer displayed, but enter a valid 3 Press the "OK" button (the keys are not displayed), and the password is compared reserved 4 more accurate display "OK!", Otherwise it displays "Error!" 5 After three consecutive errors, lock the keypad

优化密码键盘.txt

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