NSString.m

二维码扫描应用demo，精选ios编程学习源码，很好的参考资料。(Two dimensional bar code scanning application demo, select learning IOS programming source code, a good reference.)

ST分段控制的iOS，精选ios编程学习源码，很好的参考资料。(ST segment control of iOS, ios programming learning source selection, a good reference.)

评分打星星的一个例子 可以用来参考 很实用(An example of playing star ratings can be used to refer to)

此项目完整玩具机器人代码和原理，还元器件清单；(This project complete toy robot code and principles, to restore the device list )

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)

Navigation bar example

matlab 图像锐化 图像增强 高通滤波 巴特沃斯(image enhancement matlab image sharpening high-pass filter 波巴特沃斯)

史密斯圆图的应用, 包括阻抗匹配，计算方法等(Smith chart applications, including impedance matching, calculation methods)

芯片资料 芯片资料 芯片资料 芯片资料 芯片资料 芯片资料(Information on data-chip-chip-chip-chip data data data-chip-chip data)

音频得信号处理 画图 和数据得分析 根据声音画出音波图形(Paint the audio signal processing and data obtained was analyzed)