c#写的三层连接不同数据库。比较简单，但很实用、规范。

在很多管理信息系统的窗体都有一些共同点：可以通过框架菜单打开各种类型的视图窗口，而这些视图窗口具有MDI的一些特点，可以在框架窗体中最小化最大化还原等，并且点击菜单只能产生一个窗口（象SDI）。这种形式的窗口设计给人与一种条理感。于是我用VC6.0尝试创建这种窗口，现将整个过程为大家写下来，这里应含有MFC的一些内幕技术。 -Management information systems in many of the forms have some common elements: the menu can be opened through the framework of various types of view window, which has a view window MDI some of the features, you can form in the framework of maximizing the smallest reduction, etc., and Click on the menu can only have a window (as SDI). This form of window design gives people with a sense of well-organized. So I use VC6.0 attempt to create such a window, now the whole process for everyone to write down here should contain a number of insider MFC technology.

使用DAO访问数据库的例子-DAO access to the database using the example

约瑟夫环！C语言数据结构实习报告用的-Josephus! C language data structures internship with the report!

XML--XPATH 的例子, Visual Studio CSharp-XML- XPATH example, Visual Studio CSharp

PDA上操作SQLCE的例子,简单的读写数据SQLCE数据库,如何创建数据库-PDA operating SQLCE example, a simple read and write data SQLCE databases, how to create database

音乐点播管理系统（客户端）是功能齐全的管理系统，可以作为商业代码直接使用-Music on-demand management system (client) is a full-featured management system that can be used directly as a commercial code

访问数据库读取图片文件-access to the database to read image files

超市管理系统 一个小数据库,加上VB的快速开发的能力.写出一个这么小的程序.-supermaket manget.

vb做POS 前台系统一些用符号来表示功能的键的编码-vb front POS system to do some symbols used to express key features of the coding

VC下使用ADO对数据库进行操作的类，非常好用。-VC use ADO to operate the database category, very handy.