DemoMultiColumnSort.zip datagridview 多列排序

 AES-128, AES-192, AES-256 bits. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining) with support for ciphertext stealing – CTR (CounTer Mode) – CCM (Counter with CBC-MAC) – GCM (Galois Counter Mode) – CMAC – KEY WRAP  ARC4  DES, TripleDES. Supported modes are: – ECB (Electronic Codebook Mode) – CBC (Cipher-Block Chaining)  HASH functions with HMAC support: – MD5 – SHA-1 – SHA-224 – SHA-256  Random engine based on DRBG-AES-128  RSA signature functions with PKCS#1v1.5  ECC (Elliptic Curve Cryptography): – Key generation – Scalar multiplication (the base for ECDH) – ECDSA

计算重力异常,只需要输入最大重力场模型的最大阶数以及重力场模型文件名在程序里设置经纬度范围和间隔即可得到重力异常(Gravity anomaly)

stm32f7采集一遍往外打点一遍用AD采点然后将采样值返回给电脑(Stm32f7 collects points from outside once, uses AD to collect points, and then returns the sampled values to the computer.)

说明：  对3D数据运用gpu实现八叉树，完成分割并进行渲染。(The use of 3D data on the GPU octree to achieve complete segmentation and rendering.)

OpenGL wandering (OpenGL space wandering )

声波波动方程数值模拟，时间2阶空间12阶，PML吸收边界条件，及组合地震照明程序，对地震初学者有很大帮助(Numerical simulation of acoustic wave equation, time, second-order space 12 order, PML absorbing boundary conditions, and a combination of earthquake lighting program, the earthquake of great help for beginners)

C# 水晶报表导出各类型文件的例子，将水晶报表数据导出为Word文件、Excel文件、HTML文件、PDF文件，并获取水晶报表的数据库连接项，设置CrystalReport水晶报表的数据库登录选项等。相关的代码片段： 　　private void button7_Click(object sender, EventArgs e) 　　{//将水晶报表数据导出为HTML文件 　　 var MyFileName = "MyHTMLFile.htm"; 　　 var MyExportOptions = new ExportOptions(); 　　 var MyHtml32FormatOptions = new HTMLFormatOptions(); 　　 MyExportOptions.ExportFormatType = ExportFormatType.HTML32; 　　 MyHtml32FormatOptions.HTMLBaseFolderName = "Html32Folder"; 　　 MyHtml32FormatOptions.HTMLFileName = MyFileName; 　　 MyHtml32FormatOptions.HTMLEnableSeparatedPages = false; 　　 MyHtml32FormatOptions.HTMLHasPageNavigator = false; 　　 MyExportOptions.FormatOptions = MyHtml32FormatOptions; 　　 this.CrystalReport11.Export(MyExportOptions); 　　 MessageBox.Show("成功导出文件：" + MyFileName, "信息提示", MessageBoxButtons.OK); 　　} 　　private void button8_Click(object sender, EventArgs e) 　　{//将水晶报表数据导出为PDF文件 　　 var MyFileName = "MyPDFFile.pdf"; 　　 var MyExportOptions = new ExportOptions

背包问题(Knapsack problem)是一种组合优化的NP完全问题。问题可以描述为：给定一组物品，每种物品都有自己的重量和价格，在限定的总重量内，我们如何选择，才能使得物品的总价格最高。问题的名称来源于如何选择最合适的物品放置于给定背包中。(Knapsack problem)

PID算法的傅立叶展开式实现法！用于大功率温控，速度控制。稳定度高，精度达0.01(PID algorithm of the Fourier expansion to achieve the Law! Used for high-power temperature control, speed control. High stability, accuracy up to 0.01)

此程序用于加密图像，给出已有图像，将混沌序列与图像通过加密算法进行结合得到密文，再进行解密。(This program is used to encrypt the image, give the existing image, combine the chaotic sequence with the image through the encryption algorithm to obtain the ciphertext, and then decrypt it.)