C#

Illustrated c#2012--the first chapter--c# and the. NET Framework--. NET before the C # programming language was designed to develop programs in Microsoft's. NET Framework. This chapter provides a brief introduction. NET from where it comes from and

PublicForm1 () {InitializeComponent (); } Private voidButton1_Click (Objectsender, EventArgs e) {Graphics g= This. CreateGraphics ();//creating GDI pairs like//Create a brush (color)Pen Npen =NewPen (brushes.red); //Create two pointsPoint N1 =

Storm series (II): Use Csharp to create your first Storm topology (wordcount), csharpwordcount WordCount is like hello world when learning a language in the big data field, thanks to Storm's open source and Storm. net. adapter. Now we can use Csharp

[C #] talking about covariant and inverter, Although I have read several blogs about covariant and inverter, they are all correct, but I feel that they are not clear-cut and have no key points.So I also try to talk about covariant and inverter from

C # A super practical type-Anonymous type As the name implies, an anonymous type is a type without a name. When a new anonymous object definition is the same as the internal variable type of the existing type definition, the compiler will generate

MySqlDataReader is used in Using, and mysqldatareader Conclusion:When the DataReader is placed in the Using method, the resources are automatically released. If an exception occurs during the process, the occupied resources are also released.Test

[C #] Precautions for optional parameters and constants across modulesAssume that a DLL has such a class: 1 // Lib.dll2 public class Lib3 {4 public const string VERSION = "1.0";5 public static void PrintVersion(string version = "1.0")6 {7

An order pushes the magic of ObservableCollection. 　　　　 Recently, a seller app in taobao needs to subscribe to taobao order push. The sample code is as follows:   I. first look at the gameplay First, I perform the Add and Remove operations on the

[EmguCV] C # Implementation of HOG and SVM,  About the alpha and rock vectors in SVM EmguCV encapsulation is more thorough. in C #, the two intermediate variables cannot be obtained through reload like C ++.// Inherit from the CvSVM class, because

C # transparent background Panel, transparent image, and PitureBox transparent Effect   1. Custom transparent background Panel control: Add TransparentPanel. cs class to the Project   using System.Windows.Forms;using System.Drawing; Public class

C # reading excel, The Provider is set based on the actual EXCEL version. It is recommended to use the ACE interface for reading. Access database Engine is required. Note that the values of the following two items in the Registry are 0. Otherwise,

Xin Ge push. NET Server SDK rest api calling Library (v1.2), sdkv1.2Xinyi push. NET Server SDK rest api call library-Introduction This version is encapsulated when we push the v2 version based on Xin GE. we will share it with you first, and the

C # multi-thread development 6: Use the lock statement to synchronize multiple threads When data is shared among multiple threads, you must consider thread synchronization. Ensure that only one thread accesses and changes the shared data at a

List of c #List Generic set, which can replace ArrayListCommon Methods List list = new List (); Method Name Function Add () Add Element AddRange Add a set ToArray ()

C # basic use of parallel programming in PLINQPLINQ Summary You can easily Query and process data from different data sources. PLINQ Parallel LINQ not only provides the functions of LINQ, but also adds interfaces for Parallel operations to

C # object-oriented programming exercises Using System; using System. collections. generic; using System. linq; using System. text; using System. threading. tasks; namespace ConsoleApplication1 {class Program {public class apple {public string info;

C # Baidu map development (2) converts JSON data into corresponding classes,In the article "C # Baidu map development (I) Initiating an HTTP request", we initiate a request to the URL of the API provided by Baidu and get the returned result, the

Thread. Sleep vs. Task. Delay, rtthreaddelayWe use both Thread. Sleep () and Task. Delay () to suspend the execution of a program for some given time. But are we actually suspending the execution? What is the difference between these two? How to

Dynamic values of templates and templates There is often a problem in projects. When printing word or excel, we often use a one-to-one assignment or batch replacement method to modify the template. But now we have two scenarios: 1. The value can be

C # thread,   Thread natureA thread is not a computer hardware function, but a logic function provided by the operating system. A thread is essentially a piece of code that runs concurrently in a process, therefore, threads require the operating