2.1 显示时间、密码功能：用ShowTime函数来完成显示时间功能，用SetCode proc函数来产生密码。

2.2 判断密码正误功能：用Incode proc函数来完成键盘输入密码功能。用CodeCmp proc函数来比较输入密码与显示密码。且设有统计输入次数功能，最多只能输入三次。三次后询问是否退出。

2.3 音乐播放功能：三次之内输入密码正确则可选择播放音乐，三首供选择。PlayMusic proc为音乐函数，同时还有Waitf延时程序。

-2.1 shows the time, the password function: with ShowTime function to complete the display time function, SetCode the proc function to generate the password.

2.2 to determine the password is mistaken: the Incode proc function to completion of the keyboard to enter a password. CodeCmp the proc function to enter the password and display the password. And has a number of statistical input, and can only enter up to three times. After three asked whether exit.

2.3 Music playback: three times the input password is correct you can choose to play music, three to choose from. PlayMusic the proc for the music function, as well as Waitf delay procedure.