C#中的数据库连接类，数据库DB类。绝对实用

This is a Tongxunlu system,very easy. 小型通讯系统，DOS界面。(This is a Tongxunlu system,very easy.)

MD5的应用代码，非常简单好用。从这里你可以学到更多的使用帮助方法，能够快速入手MD5的应用方法和使用。请多多下载。

说明：  基于IAR开发环境，野火FTM 配置文件，包含C和H文件(Based on the IAR development environment, wildfire FTM configuration file, including C and H files)

HID class for C++ Builder

学生选课系统。比较全面的概述整个过程。给人以直观的了解(Student Course Selection System. More comprehensive overview of the whole process. Gives an intuitive understanding of)

求解四元三次方程组，通过在VC++的编程环境，实现计算的高速运行(Solving four yuan cubic equations by VC++ programming environment, to achieve high-speed operation calculated)

说明：  光伏阵列，降压电路（buck），恒压充电控制(Photovoltaic array, step-down circuit (buck), constant voltage charge control)

说明：  文档一体化系统是从档案管理的实际情况出发而研发的，总体上力求简明、实用和功能完备；操作风格上，尽可能地向大家所熟悉的微软产品靠近。它具有文档一体化功能，乡镇、机关档案室可以从收发文登记开始管理，以归档类目为桥梁，通过归档操作，最终完成归档工作。此系统启运方便快捷。(Document integration system is developed from the actual situation of archives management, and strives to be concise, practical and functional in general. In terms of operation style, it is as close as possible to Microsoft products that you are familiar with. It has the function of document integration. Township and government archives office can start management from the registration of receiving and receiving documents, take the archiving category as a bridge, and finally complete the archiving work through the archiving operation. This system is easy to operate.)

德州仪器公司的CC2530芯片手册，用于ZigBee技术的IEEE 802.15.4协议的2.4GHz通信应用(CC2530-in Chinese)

一片很好的计算机辅助检查研究论文，在IEEE上必须付费的一篇论文。(very goog for research cad )