改变预设打印机设置代码

按键控制LED流水灯；按键1按下前8个灯从左到右依次点亮，按键2按下中间前8个灯从左到右依次点亮，按键3按下所有灯全亮(Water control button LED lights sequentially lit buttons the eight lights left to right 1 Press button 2 press from left to right is lit in the middle eight lights, key 3 Press All full bright light)

说明：  拍拍灯的源码程序,值得参考.可以放在床头，晚上起来时轻拍一下就亮，很方便实用。 在黑暗的夜里，留一盏灯给回家的人，温馨的氛围让屋子里每一个角落都充满幸福的光辉。 不管自己是不是一个人，心里都希望黑黑的地方有着柔和的光，特别在晚上拥有让人安心的理由。在因为太过疲倦而不容易入眠的痛苦时候，其实温柔光线能够抚慰人心，让人放心入睡。(Patting lamp source code procedures, is worth reference. Can be put on the head of a bed, at night when the light tap, very convenient and practical. In the dark night, leave a lamp to go home, warm atmosphere makes every corner of the room is full of happiness. Whether you are a person or not, you want a soft light in a dark place, especially at night for a reassuring reason.In the pain of being too tired to fall asleep easily, actually gentle light can be soothing and make people rest assured to sleep.)

我收藏的c語言900個例題，裡頭有控制dos-bios,memory,macros,math....的一些範例，原碼可能很簡單但是很實用，希望大家喜歡(language collections c 900 of excellence, he got control dos-bios, memory, macros, math .... some example, the original code may be very simple but very useful, hope you like)

MATLAB中边缘提取的几种方法，以及他们优缺点的比较！(MATLAB edge extraction in several ways, and their comparative advantages and disadvantages!)

针对MCS-51单片机的硬件结构和原理、指令系统、汇编、中断、定时器、并行扩展等进行了讲解。(The hardware structure and principle, instruction system, assembly, interrupt, timer and parallel expansion of MCS-51 single chip computer are explained.)

a sample for MT4 connect matlab

操作系统编程，INTEL编程文档说明，详细介绍了intel芯片的汇编语法及详细的说明。(operation system programming intel 2)

清华大学原版C#学习资料，适合初学者使用！-Tsinghua University, the original C# Study information, suitable for beginners to use!

基于三星公司s3c2440的led灯显示程序，希望对初学者有用，wince5.0 evc4.0开发的(S3c2440 based on Samsung' s led light display program, hope to be useful for beginners, wince5.0 evc4.0 development)

完成示波器最基本的功能，包括增益的设置，时基的设置，波形的显示，获取波形的频率周期(Complete the basic functions of the oscilloscope, including gain setting, time base setting, waveform display, and obtain the frequency cycle of the waveform.)