标准MODBUS规约文档。Modbus 协议是应用于电子控制器上的一种通用语言。通过此协议，控制器相互之间、控制器经由网络（例如以太网）和其它设备之间可以通信。...

MCS-51experiment,有五个章节的试验，由简到难。认真做完这些实验估计你就很牛了。-MCS-51experiment, there are five sections of the tests, from simple to difficult. Seriously you done these experiments it is estimated that the cattle.

网上的电子书《Jbuilder9基础教程》的全部例子源码-online electronic book, "Guide to Jbuilder9 basis," all examples of FOSS

有关汇编的电子资料,非常好用哦.-the compilation of electronic data, a very handy oh.

mifare-desfire卡片的底层iso14443规范说明 对读卡器的底层开发有帮助-mifare-card desfire the bottom iso14443 specification of the reader Bottom development help

C语言数值算法程序大全（第二版）_10070603-C language program Guinness Numerical Algorithms (second edition) _10070603

linux网络协议栈的分析 linux网络协议栈的分析-linux network protocol stack analysis of linux networking protocol stack analysis

Programming C user guide very good book

摘　要　虽然开放系统是一个流行的名词, 但是对于一般用户, 它却是一个在实际工作中“无法操作”的事物。本文从计算机开放系统的基本特征出发, 通过逻辑推理, 导出描述开放系统的轮廓, 借助于后者使开放系统一词的内涵得到了澄清, 并使它的实现变成了“可操作的”。文中还从IT 实际工作的方便出发, 提出了一个简明的开放系统的工作定义。关键词　开放系统, 轮廓, 可移植性, 可互操作性, 封闭系统, 开放式专有系统-Abstract Although open systems is a popular term, but for the average user, it is a practical work in a "inoperative" things. This open computer systems from the basic characteristics, through logical reasoning, derived describing the contours of open systems, using open systems which enable the connotation the word has been clarified, and the realization that it has become a "workable." The article also from IT to facilitate the practical work, put forward a simple one, the open system of working definition. Keywords open systems, contour, portability, interoperability, closed system, an open-end proprietary systems

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VC++图像编程的全部源码，很有用的，而且很好用的。-VC++ Image of all-source programming, useful, and well used.