What is c#? What is the use?

What is

c#? What is the use? This article will introduce you to the functions of c#, let you understand the c# program structure, and the simple use of c#. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you. A brief introduction to

#:

C# is a modern general-purpose object-oriented programming language developed by Microsoft and manufactured by European Computers Approved by ECMA and ISO.

C# is designed for the Common Language Infrastructure (CLI), which consists of executable code and a runtime environment that allows the use of a variety of high-level languages ​​on different computer platforms and architectures. [Related video tutorial recommendations: c# tutorial]

C# can become a widely used professional language for the following reasons:

1. It is a modern A general-purpose programming language

2. It is object-oriented.

3. It is component-oriented.

4. It's easy to learn.

5. It is a structured language.

6. It produces effective programs.

7. It can be compiled on various computer platforms.

7. It is part of the .Net framework.

The Powerful Programming Features of C

##C# is a high-level language constructed closely following the tradition, like C and C#, and both It is an object-oriented programming language. It has strong similarities with Java and it has many powerful programming features that make it meet the needs of many programmers around the world.

The following is a list of some important functions of C

#1, Boolean conditions

2, automatic garbage collection

3, standard library

4. Assembly version control

5. Properties and events

6. Representative and event management

7. Easy-to-use generics

8. Index

9. Conditional compilation

10. Simple multi-threading

11. LINQ and Lambda expression

12. Integration with Windows

Simple example of C

#1. C# program structure

C# program Including the following parts-

1), namespace declaration

2), a class

3), class method

4), class attribute

5), Main method

6), Declaration and expression

7), Comment

2, Simple example: Print the words "Hello World"

using System;
namespace HelloWorldApplication {
   class HelloWorld {
      static void Main(string[] args) {
         /* my first program in C# */
         Console.WriteLine("Hello World!");
         Console.ReadKey();
      }
   }}

When compiling and executing this code, the following results will be produced:

Explanation:

1), the first line of the program uses The keyword using System; This is used to include the System namespace in the program. Programs often have multiple using statements.

2), declare the namespace (HelloWorldApplication) in the second line. A namespace is a collection of classes. The HelloWorldApplication namespace contains the HelloWorld class.

3). There is a class declaration in the third line. The HelloWorld class contains data and method definitions used by the program. Classes usually contain multiple methods, which define the behavior of the class. However, the HelloWorld class has only one Main method.

4), the fourth line defines the Main method, which is the entry point of all C# programs. The Main method specifies what to do during class.

5), the fifth line /*...*/ is ignored by the compiler, and comments are added to the program.

6). The Main method uses the statement Console.WriteLine ("Hello World") to specify its behavior;

7). WriteLine is a method of the Console class defined in the System namespace. This statement causes the message "Hello, World!" to be displayed on the screen.

8), the last line Console.ReadKey(); is suitable for VS.NET users. This makes the program wait for key presses, and when launching the program from Visual Studio .NET, it prevents the screen from running and closing quickly.

Note: C language programming is very much based on C language and C programming language, so if you have a basic understanding of C or C programming, then learning C language will be interesting.

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