C++map 按key和value排序

说明：  一个打开并显示位图或者像素矩阵的程序 注意：本程序没有使用DOC/VIEW架构， 所以理解起来更容易，适合初学者。 本程序支持bmp、raw格式图像的读取(an open and display bitmap pixel matrix, or the procedures to : this procedure does not use DOC/VIEW structure, make it easier to understand and suitable for beginners. This program supports bmp, raw format images read)

超声波测距，可以通过串口助手显示，当小于设定值时，显示0，当大于设定值时，显示1(Ultrasonic Ranging, through serial aides showed that when less than the set value, 0, when greater than the set value, indicating a)

STM30F103 buzzer example

L3VPN创建隧道是出口是用tunnel管道创建接口，支持虚拟机子接口和物理口方式，删除和建立通过链表数据结构进行处理

从多媒体文件中搜索给定的视频帧号，这些帧有一个start_code标志位，本算法是融合顺序和预测相结合的方法，算法的执行时间以及内存空间都比较少。(search the presibed viedo frame in multimedia files，with the startcode flag.Use the predict algorithm and sequence algorithm. The algorithm demand small time and little memory space.)

干旱监测降水指数(PDSI)程序，使用手册一同上传。(Precipitation index for drought monitoring program, user manual with upload)

语音合成程序源码！psalo频域基音同步叠加方法。它首先对原始语音信号进行短时频域变换，的到短时谱与短时谱包络。短时谱除以短时谱包络的到声源短时谱，对声源短时谱的实部与与虚部分别进行线性插值，就能达到改变变语音信号基频的目的，然后再进行频域反变换，可的到变换后的短时语音信号。短时谱包络部分也能独立改变，以达到改变音色的目的。 (Voice synthesis program source! psalo frequency domain pitch synchronous superposition method. It was first carried out on the original speech signal a short-time frequency-domain transform, to the short-time spectrum and short-time spectrum envelope. The short-time spectrum divided by the short-time spectrum envelope of the short time spectrum of the sound source, the short time spectrum of the real part of the sound source, and the imaginary parts of the linear interpolation, can achieve the purpose of changing the fundamental frequency of the alternating speech signal, and then then the inverse transform of the frequency domain, can be to the short-time speech signal after conversion. The short-time spectral envelope section can be varied independently, in order to achieve the purpose of changing the tone.)

本程序提供sunson lcd CA320240 的源码。可以显示数字、汉字、图案等。(This procedure provided the source sunson lcd CA320240. Can show figures, Chinese characters, patterns and so on.)

Interactive music visualization

C#与s71500(S7.Net.dll)