Implementation-of-Polyalphabetic-cipher

实现倒计时的一个小demo 可以用来参考(Countdown to achieve a small demo can be used to refer to)

侧边伸缩导航栏效果，精选ios编程学习源码，很好的参考资料。(The side effect of stretching the navigation bar, select learning IOS programming source code, a good reference.)

说明：  iPhone真机调试及如何上传到Apple Application Store平台。(iPhone-device debugging and how to upload to the Apple Application Store platform.)

导航栏，精选ios编程学习源码，很好的参考资料。(The navigation bar, select learning IOS programming source code, a good reference.)

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)

this is about matlab code for convolutional codes

object-c 基本语法说明- 利用在xcode上(object-c basic grammer- use xcode tool)

英文书Beginning Mac OS X Snow Leopard Programming的源码。(Source code of book "Beginning Mac OS X Snow Leopard Programming")

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.)

NSString框架的学习，包括NSNumber等 NSString框架的学习，包括NSNumber等(NSString framework of learning, including learning NSNumber etc. NSString framework, including NSNumber etc.)