牛顿 拉夫逊

利用STM30F103实现多路PWM可调输出

基于CC254X系列的TI BLE源码，BLE支持蓝牙4.0协议。里面提供了关于CC254X使用BLE功能的大部分例程，对于学习使用CC254X系列有着指导性的作用

Network File Transfer Tool Example()

MFC读写EXCEL示例,对初学者来说绝对实用.

说明：  C专家编程以及如何写出高效优美的C语言代码(Expert C programming and how to write elegant and efficient C-language code)

本程序在vc2008环境下可运行成功，为本人的原创窗口程序，源代码结构完整。用于高斯束地震模型的正演数值模拟，运行时分为三步：1，建立模型；2.射线追踪；3.合成地震记录。(In vc2008 environment, the program can run successfully, I have the original window procedure for the forward modeling of seismic modeling Gaussian beam is divided into three steps: 1 runtime modeling 2. Ray tracing 3 synthetic seismogram .)

利用GPIO控制无源蜂鸣器发声，播放音乐。使用SysTick延时，使用位带操作寻址IO口引脚。(GPIO is used to control the voice of passive buzzer and play music. Use SysTick delay, use bit band operation to address IO pins.)

Xmpp client 开发的开源库,很稳定,(Open source libraries developed by Xmpp client are stable,)

sm4国密对称算法源码和使用sample，请参考。。(sm4 source code sample)

我们写iOS项目的时候，基本都是一个UINavigationController套一个UITabBarController的形式，就是上面一个导航栏，下面几个按钮的工具条的形式。我写了几个应用，发现如果每次都重新写的话完全就是浪费精力和时间，而且还使工程结构混乱。因此我就抽时间把这种形式的UI结构单独写出来，并抽象出调用接口，这样以后再写应用是就可以直接在这个工程上添加就行了。(We write iOS project, basically in the form of a sleeve of a UINavigationController UITabBarController, that is, above the navigation bar, in the form of several toolbar buttons below. I wrote several applications, found that if each time to re-write it entirely is a waste of time and energy, but also to make the project structure confusing. So I would take the time to write this form of UI structure out alone, and abstract call interface, so that later write applications that can be added directly on this project on the line.)