NSString.m

用SwiftLanguage编写的A Star Routing.(A Star Routing that is created with Swift Language.)

tab bar controller 自定义颜色和演示demo，精选ios编程学习源码，很好的参考资料。(Tab bar controller custom colors and demonstration of demo, selection of learning IOS programming source code, a good reference.)

The Cross Frame Scripting 翻译(The Cross Frame Scripting)

MATLAB SIMULINK SIMITH 控制模型(MATLAB SIMULINK SIMITH control model)

说明：  matlab教程，希望大家一起来学习，我看多好几遍了，非常不错。(matlab tutorial I hope everyone will work together to learn, I can see how good a few times, and very good.)

Sample Code which helps to understand how to use LocationManager.

产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)

it is used in microcontroller..

及时通信，及时通信，及时通信，及时通信，及时通信，(Timely communication, timely communication, timely communication, timely communication, timely communication,)

英文版的书籍，使你了解xcode开发工具和相关的知识(English version of the book, so that you understand the xcode developer tools and relevant knowledge)