QTcpSocket客户端，含数据接收和数据发送程序

用udp协议通讯示例--包括udp客户端与服务端的源代码。(Examples using udp protocol communications- including the udp client and server source code.)

Visual Studio下用C#和实现串口通信的完整工程(Implementing Serial Communication using C#)

说明：  模拟电路基本知识讲解，非常适合初学者。强烈推荐(The basic knowledge of analog circuits is very suitable for beginners.)

一个用于显示DEM(数字高程模型）和DLG（Digital Line Graphs ）的阅览器，可以从不同的角度观察地图。(Is used to display a DEM (digital elevation model) and DLG (Digital Line Graphs) of the reader, you can view the map from different angles.)

随着经济的发展和人民生活水平的提高，福利彩票事业也有一定的发展。如今的福利彩票多种多样，彩民可以自由选择。本例中笔者设计了一个简单的彩票抽奖机游戏，单击开始按钮，7个数字会随机变化，单击停止按钮，数字将停止变化。

locked system with digital code

可以实现对工资的智能化的管理，效率高，错误少，方便快捷(Wage can be achieved on the management of intelligent, high efficiency, less errors, convenient and quick)

说明：  基STm32的电机控制程序开发教程以及无刷电机详细介绍(Development of Motor Control Program Based on STm32, Source Code and Related Tutorials)

C#屏幕截图 桌面截图 指定句柄窗口截图 附源码

说明：  傅立叶变换在图像处理中的重要作用： (A) 图像增强与图像去噪 绝大部分噪音都是图像的高频分量，通过低通滤波器来滤除高频噪声；边缘也是图像的高频分量，可以通过添加高频分量来增强原始图像的边缘； (B) 图像分割与边缘检测 提取图像高频分量 (C) 图像特征提取 形状特征：傅里叶描述子 纹理特征：直接通过傅里叶系数来计算纹理特征 其他特征：将提取的特征值进行傅里叶变换来使特征具有平移、伸缩、旋转不变性 (D ) 图像压缩 可以直接通过傅里叶系数来压缩数据；常用的离散余弦变换是傅立叶变换的实变换； (Fourier transform in the important role of image processing: (A) image enhancement and image denoising Most of all images of high frequency noise by low pass filter to filter out high frequency noise edge is the image of the high frequency components can be enhanced by adding high frequency components to the edge of the original image (B) Image segmentation and edge detection High frequency components extracted image (C) image feature extraction Shape features: Fourier descriptors Texture: directly through the Fourier coefficients to calculate the texture features Other features: The characteristic value extracted by Fourier transform to the characteristics of translation, scaling, rotation invariance (D) image compression Fourier coefficients can be directly compressed data commonly used discrete cosine transform is the Fourier transform of the real transformation 朗读显示对应的拉丁字符的拼音)