采用kiel环境进行开发，用按键输入密码，如果和初始密码相同则提示正确，发出开锁信号，否则发出错误提示，如果错误三次则15秒内禁止输入-Using kiel environment for development, with the key for a password if you are prompted and initial password are the same right to issue unlock signal, or sounds an error, if the err