unit-8

基于MFC编写的简单计算器Visual C++程序(Write a simple calculator based on MFC Visual C++ program)

VB将数据库导出到TXT文本文件中,有需要的就下载吧。(VB database export to TXT text file, there is a need to download it.)

这是一个Visual Basic 源代码程序，它通过变更用户权限的方法，让某一个应用程序在相对安全的状态下运行，从而提高系统的安全性。(This is a Visual Basic source code program, change user permissions, so that an application running in the relative safety of the state, to improve the security of the system.)

小的计算器，适合初学者，虽然简陋了点，但很清楚(Calculator, suitable for beginners)

大整数阶乘的计算器，能计算上万的阶乘，不过速度有点慢(Large integer factorial calculator that can calculate the factorial of thousands, but a bit slow)

利用vb开发环境连接wincc数据库，将wincc运行的数据导入excel中(SQL excel VB WINCC ADODB.Connection recorderset.Open AdoSql, Connection, adOpenDynamic, adLockOptimistic)

使用ceres对曲线进行拟合程序，ceres可以从github下载；(Using ceres fitting program, Ceres can be downloaded github )

C语言写的地铁模拟收费系统，实现了一些地铁收费的基本功能。(Metro analog toll system written in C language, some of the basic functions of the MTR charges.)

本程序主要完成多用途不同质量单位，长度单位的双向转换功能(This procedure mainly complete multi-purpose different quality unit, the unit length of bidirectional conversion function)

谭浩强C程序设计第四版第8章习题答案,自己做出来的( C Programming Fourth Edition Chapter 8 Exercise answers, do it yourself)