蓝牙ibeacon

首先对字母进行编号，小写字母a至z编号为1至26，大写字母A至Z分别编号27至52，这样每个字母都有唯一的一个序号，在发送内容时，我们以函数F(X)=X*X+X+1对发送字母的序号进行计算，就会获取个新的序号，对该序号再进行对52取余，该序号即为加密后的要发送字母的序号，这样就能达到加密的作用。(Number first letter lowercase letters a to z No. 1-26, No. 27-52 uppercase letters A to Z, respectively, so each letter has a unique serial number, sending content to the function F (X- ) = X* X+X+1 send letters number is calculated, it will get a new serial number, the serial number and then take the remainder of the 52, the serial number is the serial number of the letters to be sent encrypted, so that we can achieve encryption role.)

说明：  1. 院士陶文铨的经典书籍：数值传热学（第二版） 2. 做数值计算的人不可不看的书籍 3. pdf格式，加了书签，方便阅读(1. Academician Wen-Quan Tao classic books: Numerical Heat Transfer (second edition) 2. The people to do numerical computation can not see the books 3. Pdf format, added bookmarks, user-friendly)

20点小游戏，学会它可以让你在朋友前炫耀一下。(this case is a 20-point game, learn which will allow you to show off at a friend s before)

基于 MFC 工具，本程序叫你如何进行 获取当前的日期、时间并格式化输出。该程序适合于刚入门学习 mfc 的同学们，强烈推荐参考和学习。

跑马灯UILable，跑马灯UILable，跑马灯UILable

该类计算图像的主分量,特征值,特征向量,并且使用主分量重构.(The main components of such calculation of the image, feature values, feature vectors, and the use of principal component reconstruction.)

C语言的快速傅里叶变换，基于VC++编写，高效率，1024个点(The fast Fourier transform of C language is based on VC++, which is efficient and 1024 points.)

说明：  Qt是一种基于C++的跨平台图形用户界面应用程序开发框架。关于qt的学习，从入门到精通(QT is a cross platform GUI application development framework based on C + +. Learning about QT, from entry to mastery)

说明：  STC15F2K60S2的UCOS-II移植(ucosii for STC15F2K60S2)

说明：  一个雕刻机的源代码，还有编译好的程序，国外的(An engraving machine)