资 源 简 介
3、编写口令程序
要求：
1) 口令是随系统时间而变动的。（在输入口令前应先把当时的系统时间显示在屏幕上）
2)口令输入有次数限制。（口令与时间有关，但不能直接输与显示在屏幕上时间的数值，应进行运算。
3)、口令输入正确后进入选歌菜单，可选3首以上歌曲，可任意停止返回菜单。-3, the preparation of password procedures require: 1) The password is with the system changes over time. (Enter the password in the system at that time before the time displayed on the screen) 2) have a limited number of password input. (Password and time, but should not direct transmission and display on the screen time value calculations should be carried out. 3), enter the correct password selected songs backward menu options for more than three songs, free to stop the return of the menu.
