萤火虫 PID 算法代码

iPhone passbook产生器接口实现程序，可以适应iPhone passbook 最新版。自助开发电子钱包，卡包必备lib。。。

一个TC画图软件,使用TC编译，具有程序框架及结构，适合改编而具有个性(a TC Drawing TOOL)

本文章是一篇基于单片机应用于门禁系统的文章，具有科普性质的文章。(This article is a microcontroller-based access control systems used in the article, with the nature of science articles.)

用win32 api实现的弹幕演示效果, 其实就是一个透明窗口,在上面绘制文本(The projectile demonstration effect realized by win32 api is actually a transparent window, drawing text on it.)

说明：  分水岭算法使用的详细介绍（添加注释），方便阅读和理解；银行卡号的识别将多种图像处理的手段加以利用，最重要的就是数字的循环提取，本次采用的是独特的提取和识别方式（python）。还有用C语言编程的edem中API接口以及示例，便于使用。(Watershed algorithm used in detail (add notes), easy to read and understand; bank card number recognition will be a variety of image processing means to use, the most important is the number of circular extraction, this time using a unique extraction and recognition method (Python). There are also API interfaces and examples in edem programmed by C language, which are easy to use.)

说明：  基于51单片机，芯片STC98c52核心板的矩形按键的实验的源代码(Lattice Experiment of Debugging 51 Single Chip Microcomputer)

计算机图形学里画圆、直线、椭圆的小程序,比较简单(Computer graphics circle, line, oval small procedure is relatively simple)

数字电压表的源程序，可以实现实现测量电路的电压，精确到小数点后面三位数字。附带数字电压表的流程图(Digital voltage meter source, can be implemented to realize the voltage measurement circuit, down to the decimal point three digits.Attached flowchart of digital voltmeter)

枚举当前系统中所有的已经安装的设备！ 原创呀！(All has been installed in the enumeration of the current system of equipment!)

学习的时候自己创建的Rational小类,供学习参考.