use API to draw ellipse

用C语言实现学生学号，姓名，五门课程成绩的录入与查寻，统计不及格人数，优秀学生人数，平均成绩等。-C language students learn, names, five courses with the results of the search entry, compared to statistics, the number of outstanding students, the average performance.

How to create and delete environment by vc.

一个用delphi实现的邮件收发程序,实现了邮件的基本功能-Delphi realize a use of mail procedures, realize the basic functions of the e-mail

高质量C++编程指南,书中对C++的使用给出了各种规范-high quality C++

C++对象消息传递，非常好用。-C object messaging, a very handy.

一个ini文件解析的C++实现，使用STL，并有文档说明。-Ini files parsed a C++ Realize, the use of STL, and documentation.

简单而经典的小程序，有利于编程人员获得更多的经验，更好的了解C的编程-Simple and classic small program will help programmers to get more experience, a better understanding of C programming

文字软件，用于多功能自动翻译，目前支持6种语言的自动翻译-Text software for multi-functional automatic translation, currently supports 6 languages, automatic translation

板载NRF24L01+ 2.4G通讯芯片与遥控器通讯。 STM32 F103C8T6高性能32位处理器进行姿态解算，融合MPU6050传感器数据，计算出四元数，再转换成欧拉角作为PID的输入。

CAIMAN method是一种通过挖掘数据的帽子矩阵的对角信息来实现对数据分组的方法。-The CAIMAN method (Classification And Influence Matrix ANalysis) is a classification method exploiting the properties of the diagonal terms of the influence matrix, also called leverages.