向西门子PLC的数据块DB写入上位机数据，实现PC与PLC间的通信

外国网站下载的一款即时通讯软件，试用过巨好。强力推荐！-foreign website includes an instant messaging software giant tested good. Strongly recommended!

关于rs码编码器的相关程序，利用硬件语言实现-Rs encoder code on the relevant procedures, take advantage of the hardware language

一个通过VC MSCOMM控件实现的，串口通讯程序，适合学习串口通讯的基本知识~-Through the control of a VC MSCOMM realize and serial communication program for learning basic knowledge of serial communication ~

通信服务端,可以进行与服务期之间进行通信,主要应用了Visual C++的通信类库- The correspondence service end, may carry on with serves between the time to carry on the correspondence, mainly has applied the Visual C correspondence class storehouse

在开发Windows mobile中经常碰到的问题，帮助开发这少走弯路，提高开发效率。-The questions that many people have meet in developing , to help developer reduing the time and improve the effciency

This a separate release of the OpenSS7 X/Open XTI/TLI library, TLI modules (timod, tirdwr) and the INET driver (inet) that provides Unix98 compatible interface to Linux NET4 TCP/IP stacks, and all the necessary manpages and other documentation. Although these components are contained in our LiS and Linux Fast-STREAMS releases, this tarball configures, builds and installs these components separate from those releases.

在vc6.0下c++开发的使用聊天程序，有注释。毕设必备-In vc6.0 under development using c++ chat program, with annotations. Bi-based essential

如何使程序在运行时自动注册ActiveX控件 - DELPHI - 编程文档 - 编程论坛-How to make the program run automatically register ActiveX controls- DELPHI- Programming Document- Programming Forum

网上收集整理的几个最为实用的SIP文档-online collected several of the most practical SIP documents