超声波测距

说明：  STC15+ST7735 并口驱动，P1口作为并行数据口。(STC15+ST7735 Parallel Port Driver)

说明：  AES128 加密算法用C语言;对明文数据加密或者对密文数据解密。(AES128 encryption algorithm uses C language.Encryption of plaintext data or decryption of ciphertext data.)

惩罚函数法C语言相关程序 它将有约束最优化问题转化为求解无约束最优化问题：其中M为足够大的正数， 起"惩罚"作用， 称之为罚因子，F(x, M )称为罚函数。(Penalty Function Method C language-related program it would have constrained optimization problem is transformed into solving unconstrained optimization problem: where M is a sufficiently large positive number, from the " punishment" effect, called the penalty factor, F (x, M) called the penalty function.)

用jsn超声波模块测距程序， 输出捕获时间 计算距离

可以替换windows登录的控制功能的gina.dll(replace widnows msgina.dll for login)

说明：  C#程序设计——Windows项目开发源码(C# Programming- Windows open source projects)

How to Linux C++ programming

说明：  This zip file provides a source for developing dialog boxes with stateful bars, toolbars, and toolbars in the vc platform

本文介绍如何使用CreateFileMapping,MapViewOfFile创建内存映射文件，如何向内存映射文件中写入数据，读取数据(This article describes how to create a memory mapping file using Creative FileWorking, MapView OfFile, and how to write data to a memory mapping file and read data)

利用SPI接口操作norflash，从读写到擦除。