学生：修改密码，查看个人资料，查看所选课程成绩，选课。 教师：修改密码，查看个人资料，查看所教课程所有学生的成绩，录入成绩。 教密：修改密码，查看个人资料，学生信息维护（添加、删除和修改），教师信息维护（添加、删除和修改），课程信息维护（添加、删除和修改），专业信息维护（添加、删除和修改），查看所有课程成绩。-Student: change passwords, view personal information, view the selected program accomplishments, elective. Teacher: change passwords, view personal information, view the curriculum taught to all students of the results, entry results. Education secret: change password, view personal information, student information maintenance (add, delete and modify), teacher information maintenance (add, delete and modify), course information maintenance (add, delete and modify), professional information maintenance (add, delete and modify), view all course grade.

用电键控制步进电机朝各个方向做曲线，圆和直线运动。-electricity stepper motor control in all directions so curve, circle and line movement.

注册表的操作，API为我们提供了对注册表的读取，写入，删除，以及打开注册表及键值时所有函数 -The operation of the registry, API has provided us with the registry of the read, write, delete, and open the registry and all function keys

steganography in compressed images(jpeg),dc coeffs not touched

OPENGL下一个简单的图形系统。包括了基本操作及一些高级技巧如动画，蒙板，曲线曲面生成等。-OPENGL under a simple graphics system. Includes the basic operation and some advanced techniques such as animation, masking, generation of curves and surfaces.

这 OCR 的源代码。代码开发的 C#、 细化和认可的标志

实用C++编程大全(Practical C++ Progranmming)-Practical C++ Programming (Practical C++ Progranmming)

若允许天平两边放砝码,times应从-num[index]开始,并且分段计算sum,本例只放天平一边.?? -if allowed to put weight on both sides of scales, from the times-num [index], and sub-calculated sum, the cases take only balance the side.

异常处理的例子-vc

用windows  API实现winsock传输各种文件的代码，先建立连接后，遍历文件夹，把文件夹中文件依次以二进制流形式传输到E: