Follow this guide to easily master the installation skills of Golang environment

As an efficient and powerful programming language, Golang is favored by more and more developers. To start developing with Golang, you must first master how to install the Golang environment. This article will introduce you to the installation skills of the Golang environment and provide specific code examples so that you can easily get started.

1. Download the Golang installation package

First, you need to download the Golang installation package suitable for your operating system from the Golang official website (https://golang.org/). Golang supports multiple operating systems, including Windows, Linux and macOS. Select the appropriate installation package to download based on your operating system.

2. Install Golang

1. For Windows system:

   • Double-click the downloaded installation package and follow the wizard to install.
   • After the installation is completed, open the command prompt (CMD) and enter the command go version. If the Golang version information can be output, the installation is successful.

2. For Linux systems:

   • Extract the downloaded installation package to the specified directory, such as /usr/local/.

   • Configure environment variables and add the following content in ~/.bashrc or ~/.bash_profile:

     export PATH=$PATH:/usr/local/go/bin

   • Run source ~/.bashrc or source ~/.bash_profile to make the environment variables take effect.
   • Enter the command go version. If the Golang version information can be output, the installation is successful.

3. For macOS system:

   • Double-click the downloaded installation package and follow the wizard to install.

   • Configure environment variables and add the following content in ~/.bash_profile or ~/.zshrc:

     export PATH=$PATH:/usr/local/go/bin

   • Run source ~/.bash_profile or source ~/.zshrc to make the environment variables take effect.
   • Enter the command go version. If the Golang version information can be output, the installation is successful.

3. Write the Hello World program

Now, let us write the first Golang program to output "Hello, World!".

1. Create a new file, such as hello.go, and enter the following code:

   package main
   
   import "fmt"
   
   func main() {
       fmt.Println("Hello, World!")
   }

2. In the command prompt , enter the directory where hello.go is saved, and run the following command to compile and execute the program:

   go run hello.go

If you see "Hello, World!" output, So congratulations, you have successfully installed and run a Golang program! Now, you can start trying out more features and functions of Golang and explore the fun and challenges brought by this excellent programming language.

Summary:

This article introduces you to the installation skills of the Golang environment, and demonstrates how to write and run a simple Golang program through specific code examples. I hope this guide can help you get started with Golang smoothly and enjoy the fun of programming!

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