seu的mfc的calculator

RichEdit代码示例，认真阅读，有收获。(RichEdit code )

孙鑫C++教程(全20讲)PPT课件讲义和源代码，对于初学c+很有帮助(Xin Sun C++ tutorials (all 20 speakers) PPT courseware notes and source code, useful for beginners c+)

基于STM32农业数据采集器完整代码，里面涵盖原理图，还有详细的源码，对于做现代农业开发的人员具有相当好的借鉴之用，不要错过，值得研究和收藏。源代码有详细的注释，程序模块化编写，很清晰和流畅，方便大家阅读。

这是一个关于PIC系列单片机及CPLD等的相关学习资料。方便大家了解不同系列的微控制器件。(This is a study on PIC MCU and CPLD and other relevant learning materials. To facilitate a better understanding of different series of micro-control devices.)

仅供学习这个是C语言二级考试中有难度的题(For study only. This is a difficult question in the C Language Level 2 Examination.)

是一个用VC编的学生成绩管理系统，主要功能有信息录入，修改，删除，查询等-VC is a series of student performance management system, the main function of information input, modify, delete, queries, etc.

说明：  qtserialport官方库，支持qt4安装(qtserialport official lib)

safari调用第三方APP demo 可以直接调试成功 供新手参考 (safari called third-party APP demo success can be directly debug reference for the novice)

说明：  usb虚拟串口，基于usb高速的虚拟串口实验。。。。。。。。。。。(Usb virtual serial port, based on usb high-speed virtual serial port experiment...)

说明：  基于正点原子MINI板的数字示波器设计，可实现信号的幅值、频率显示，以及水平时基、垂直灵敏度的调节(The design of digital oscilloscope based on punctual atomic mini board can display the amplitude and frequency of signal, adjust the horizontal time base and vertical sensitivity)