Proteus和labview仿真，有源码，非常不错的

简单51程序，主要针对初学者的51程序，跑马灯的-51 simple procedures, mainly for beginners of 51 procedures, the Marquee

电子秒表-99 seconds time counter

一、 使用键盘显示接口芯片8279接收按键键值，并在七段数码管上显示出来，通过判断键值进入相应音乐播放处理程序。在音乐播放程序中，使用定时器/计数器8253的计数器2，使其工作在方式¬ ¬ 3―方波发生器，通过查表依次取出乐曲频率值送入计数器作为计数初值，经out2输出方波，驱动扬声器发出不同频率的声音，在每个音阶之间加入相应的延迟时间，即实现了音乐的播放。-First, the use of a keyboard display interface chip receive keys keys 8279, and Seven-Segment LED display, through to determine the corresponding music player keys to enter the treatment program. Procedures in the music player, use the timer/counter 2 counter 8253 to work in the way ? ? 3- square-wave generator, followed by out music through the look-up table values into the counter as a frequency count of the initial value, the output side out2 waves, driven loudspeakers of different frequency sound, in between each scale by adding the appropriate delay time, namely, the realization of the music player.

霍夫曼编码器的实现（霍夫曼编码不具有唯一性，通过建立霍夫曼树实现）、实现图的遍历（前—中—后等不同顺序）、教学计划编制问题、快速排序、优先队列与堆

本程序有详细的注释,切运行无误 ,程序模块清晰,移植性好,可以实现动态时间的显示,-the procedures detailed in the Notes, cut operating correctly, program modules clear, transplantation, and can achieve dynamic time,

图形的裁剪是计算机图形处理中很重要的环节，本程序介绍了这一功能。-Cutting graphics computer graphics processing is very important aspect, the procedures introduced this feature.

6led的汇编程序，编译后显示12345678-6led the assembler, compiler revealed 12345678

一个很好的读写硬盘主引导区的程序. 适合于改进后做一键还原及BOOTMANAGER 等软件. -a good master boot drives to read and write the procedures. Suitable for improvement after doing a bond reduction and BOOTMANAGER software.

键盘扫描输出点初始化，调用键盘扫描程序，每移一位,键盘接收端检测一次 -Keyboard scan output point initialization, call the keyboard scanning process, each one shift, keyboard receiver detection time

中断控制器8259应用实验－中断方式控制彩灯点亮 这个是8255和8259的综合使用-8259 interrupt controller test applications- interrupt control lantern lit the 8255 and 8259 is the integrated use of