acess

编程实现一个学生成绩管理系统，可以完成插入、删除、修改等操作(Programming a student achievement management system that can complete the insert, delete, modify and other operations)

To control the Configuration of COM-port

VC++6.0开发环境，经本人证实能成功读写excel文件(VC++6.0 EXCEL)

大地坐标系正算，由空间大地直角坐标系转到WGS84坐标系(terristial coordinates transform)

将J2000惯性系下的坐标转换到RTN卫星坐标系下。(It is a coordinate conversion program J2000 to RTN.)

定义一个基类MyGraph，要求有一个纯虚函数double Area()=0。从基类派生一个圆类Circle和矩形类Rectangle，再由Rectangle类派生出Square类，分别给出Area()实现。 重载“>>”，实现对图形信息的输入。在主函数中计算三种形状的面积，并显示输出。 (Define a base class MyGraph, requires a pure virtual function double Area () = 0. Derive a circle and a rectangle class Rectangle Circle class from the base class, and then by Square Rectangle class derived class, are given Area () implementation. Reload " > > " to achieve the input of graphical information. Calculate the shape of the three main functions in the area, and display output.)

在VC6中用MFC向导ACCESS2000数据可以测与数据库的连接(used in VC6 MFC Wizard ACCESS2000 data can be measured and database connectivity)

说明：  c语言程序设计，其中包含简单的c语言程序实例，通俗易懂，对学习c语言有很大的帮助。(if you want to learn c programming,you can see this book.)

VB6.0将UTF-8转换成GB2312编码(VB6.0 will be converted to UTF-8 encoding GB2312)

一款用 VB 编写的智慧旗游戏，看看是否有用(VB prepared with a flag game wisdom. . . .)