完美的LED显示效果，支持多行文字和图片显示

一封家书。实现类的集成以及多态性，很好的练习题目。实现家书书写版本(A letter home. Achieve integration and polymorphism, practice questions. Letter writing version)

stm32f103 单片机 HAL库定时器应用例程(stm32f103 HAL library timer application routine)

STDIO has developed a distance measuring tool on a computer called Rulek. Compact and complete application..

计算机通过串口向开发板发送数据，开发板将数据原样送回。(The computer through the serial port to send data to the development board, development board will be sent back to the data as is.)

通过拖动鼠标，先点击鼠标设置起始点，然后按住不动拖动鼠标绘制任意矩形，确定形状后再松开鼠标完成绘制。程序能够往任意方向拖动鼠标，并显示矩形的绘制过程，绘制完一个矩形可再进行下一个矩形的绘制，能够实现图形重叠，互不影响。

c++实现四则运算.zip 这是一个大学生用编写的四则运算程序，请大家指点-c achieve four operations. This is a zip students with the preparation of the four Operational procedures, please guidance

基本bp神经网络算法和改进型bp神经网络算法都是我改写完成的算法，是网上到处传播的一个c++ bp神经网络算法改写的，由于网上的那个算法编译会出现若干百个错误，在其基础上重新编写和改进，写出了这两个算法(bp basic neural network algorithms and improved neural network algorithm bp I are complete rewrite the algorithm, the Internet is spreading everywhere, a c bp neural network algorithm rewrite the Internet that the algorithm will build several hundred mistakes, on the basis of its rewrite and improve, and wrote a This algorithm 2)

最短路径算法。 用无向带全图的邻接矩阵存储图，确定从源点出发到其它各点的最短路径。 输入：图中包含的顶点数n 边数m， 各边权值，用邻接矩阵或者邻接表存储。 输出：源点到其它各点的最短路径值。(Shortest path algorithm. Adjacency matrix storage with undirected graph with a full figure, determine the starting point of the shortest path from the source point of each other. Input: Vertices figure included n the number of edges m, the weight of each side, with the adjacency matrix or adjacency table storage. Output: source shortest path to value each other points.)

说明：  How are you okay with you and your family and friends has

凯视佳相机的halcon代码，用的是halcon 10包，能预览，提供了demo，源代码，需要自行安装halcon 10 软件包