ASP.NET Core 不同操作系统环境安装之Hello World 教程

Official Website：https://www.microsoft.com/net/learn/get-started-with-dotnet-tutorial#install

Windows

Install the .NET SDK

To start building .NET apps you just need to download and install the .NET SDK (Software Development Kit).

 

1. Create your app

   Open a new command prompt and run the following commands:

   dotnet new console -o myApp
   cd myApp

   The dotnet command creates a new application of type console for you. The -o parameter creates a directory named myApp where your app is stored, and populates it with the required files. The cd myApp command puts you into the newly created app directory.

   The main file in the myApp folder is Program.cs. By default, it already contains the necessary code to write "Hello World!" to the Console.

   using System;
   
   namespace myApp
   {
       class Program
       {
           static void Main(string[] args)
           {
               Console.WriteLine("Hello World!");
           }
       }
   }

2. Run your app

   In your command prompt, run the following command:

   dotnet run

   Congratulations, you've built and run your first .NET app!

3. Get an editor

   Visual Studio is a fully-featured integrated development environment (IDE) for developing .NET apps on Windows.

4. Keep learning

   Now that you've got the basics, you can keep learning with the .NET Quick Starts. In the first Quick Start you'll learn about collections.

Linux

Install the .NET SDK

To start building .NET apps you just need to download and install the .NET SDK (Software Development Kit).

Linux Distribution

 

1. Enable .NET channel

   In order to install .NET Core from Red Hat on RHEL, you first need to register using the Red Hat Subscription Manager. If this has not been done on your system, or if you are unsure, see the Red Hat Getting Started Guide.

   Install .NET SDK

   After registering with the Subscription Manager and enabling the .NET Core channel, you are ready to install and enable the .NET SDK.

   In your command prompt, run the following commands:

   yum install rh-dotnet21 -y
   scl enable rh-dotnet21 bash
   

2. Create your app

   Open a new command prompt and run the following commands:

   dotnet new console -o myApp
   cd myApp

   The dotnet command creates a new application of type console for you. The -o parameter creates a directory named myApp where your app is stored, and populates it with the required files. The cd myApp command puts you into the newly created app directory.

   The main file in the myApp folder is Program.cs. By default, it already contains the necessary code to write "Hello World!" to the Console.

   using System;
   
   namespace myApp
   {
       class Program
       {
           static void Main(string[] args)
           {
               Console.WriteLine("Hello World!");
           }
       }
   }

3. Run your app

   In your command prompt, run the following command:

   dotnet run

   Congratulations, you've built and run your first .NET app!

4. Get an editor

   Visual Studio Code is a free, cross-platform code editor with support for .NET.

For full language support including smart code completion and debugging, get the C# extension for Visual Studio Code.

1. Keep learning

   Now that you've got the basics, you can keep learning with the .NET Quick Starts. In the first Quick Start you'll learn about collections.

MacOS

Install the .NET SDK

To start building .NET apps you just need to download and install the .NET SDK (Software Development Kit).

 

1. Create your app

   Open a new command prompt and run the following commands:

   dotnet new console -o myApp
   cd myApp

   The dotnet command creates a new application of type console for you. The -o parameter creates a directory named myApp where your app is stored, and populates it with the required files. The cd myApp command puts you into the newly created app directory.

   The main file in the myApp folder is Program.cs. By default, it already contains the necessary code to write "Hello World!" to the Console.

   using System;
   
   namespace myApp
   {
       class Program
       {
           static void Main(string[] args)
           {
               Console.WriteLine("Hello World!");
           }
       }
   }

2. Run your app

   In your command prompt, run the following command:

   dotnet run

   Congratulations, you've built and run your first .NET app!

3. Get an editor

   Visual Studio Code is a free, cross-platform code editor with support for .NET.

For full language support including smart code completion and debugging, get the C# extension for Visual Studio Code.

1. Keep learning

   Now that you've got the basics, you can keep learning with the .NET Quick Starts. In the first Quick Start you'll learn about collections.