VC编写的opc客户端程序，很详细的教你如何编写一个完整的opc客户端程序...

串口之间通信的源代码。使用C++开发，对初学者有用。

此源码为在ＤＳＰ上实现的卷积纠错编解码算法，解码采用维特比ＶＩＴＥＢＩ算法-this source for the DSP is the convolution error correction coding and decoding using Viterbi algorithm VITEBI

一个十分好的IEC870-5-101培训教材-A very good IEC870-5-101 training materials

WINDOWS 串口编程 调试程序 第三部分-WINDOWS serial programming debugger third part of the

因特殊的业务需要，某些电话交流需要在第三方的监视下进行，假定某电话交流由甲乙丙三方发起，丙为监听控制方，当甲开始说话时，丙可以不允许乙听，并且开始录音，当甲说完时，丙确定是否可以让乙听，如可以。给乙放录音，当乙说话时，重复以上操作。-because of special operational needs, some telephone exchanges in the surveillance of third parties under the assumption that a telephone exchange was launched by the tripartite B, and C to monitor the controlling party, began to speak when the A, B C can not listen, and began recording at the end when A and C to determine whether or not they can B listen, if we can. B recordings to release, when the B words, to repeat the operation.

SIP. Understanding the Session Initiation Protocol Second Edition.rar全面介绍SIP RFC3261-SIP. Understanding the Second Session Initiation Protocol Edition.rar introduced SIP RFC3261

COM编程入门知识!对COM的初步了解!-portal COM programming knowledge! COM to the preliminary understanding!

实现矩阵的Cholesky分解,这些程序是用C来编写的.-Cholesky decomposition of matrix realize that these procedures are to come prepared with C.

如何计算结构体的大小运算符sizeof可以计算出给定类型的大小，对于32位系统来说，sizeof(char) = 1 sizeof(int) = 4。基本数据类型的大小很好计算，我们来看一下如何计算构造数据类型的大小。 -How to calculate the structure of the size of the sizeof operator can calculate the size of a given type, for a 32-bit systems that, sizeof (char) = 1 sizeof (int) = 4. Basic data types of the size of the fine calculation, we take a look at how to calculate the structure data type size.

直接数字合成(DDS)技术具有信号频率分辨率高、控制灵活、可编程及任意波形输出等优 点-direct digital synthesis (DDS) technology with high resolution signal frequency, flexible control, and programmable arbitrary waveform output advantages