学生管理系统,希望对大家有所帮助，第一次上传，多多见谅

RC5 encryption algorithm is a new fast symmetric block cipher developed by Ron Rivest for RSA Laboratories. Intended as a possible successor to the Data Encryption Standard, RC5 has a variable word size, a variable number of rounds, and a variable-length secret key, so the user can explicitly manipulate the trade-off between higher speed and higher security. RC5 is suitable for hardware or software implementations; the encryption and decryption algorithms are exceptionally simple. A novel feature of RC5 is the heavy use of data-dependent rotations.

用c程序设计的学生成绩管理系统源代码，有详细的注释，适合自学。-C programming with student achievement management system source code, detailed notes, for self-study.

摄像机标定程序：用matlab语言编写，主程序为 Tsai，参考 TestData 以了解调用方法-camera calibration procedures : using Matlab language, the main program for Tsai, TestData reference to understand call methods

电梯控制系统 mega128的 书上的-Elevator Control System mega128 book on

此代码包含在 C# 语言中实现的关键路径方法。

这是一个用labview开发的基于声卡的频谱分析软件-This is a development with LabVIEW-based sound card spectrum analysis software

一个自己开发的学生成绩管理系统，希望大家喜欢！-A self-developed student achievement management system, I hope everyone likes!

ftp服务器 希望能为广大的爱好者提供帮助-ftp server

用VC控制GE的打开以及一些简单功能，效果明显-VC control with GE, as well as some simple function of the open and obvious effect

我们常常会在各类的技术文章中见到诸如135、137、139、443之类的“端口”，可是这些端口究竟有什么用呢？它会不会给我们的计算机带来潜在的威胁呢？究竟有多少端口是有用的？想要了解的话，就跟我来吧-We often in various technical articles seen as 135,137,139. 443 like the "port" However, these ports whether what is the use? It will give us the potential of computer threat? How many ports are useful? Want to find out more, come with me