How to download and install Golang

In the field of computer programming, Golang is a very popular programming language. It can be used in web servers, Unix-like applications, distributed systems and cloud infrastructure. If you want to learn Golang, this article will show you how to download and install the programming language.

1. Download Golang

First, you need to download Golang from the official Golang website https://golang.google.cn/. After entering the official website, you will see the following page:

Select the corresponding version according to your operating system to download. For example, if you are a Windows user, you can choose the latest version of Golang under Windows to download.

2. Install Golang

After you download it, you will get an installation program named go(version).windows-amd64.msi (version is the version number you downloaded ).

Next, right-click to open the downloaded file and select "Run as administrator" as shown below:

In the pop-up installation wizard, you need to follow its steps step by step Install as follows:

After the installation is complete, run Windows PowerShell (or CMD) as an administrator, enter go version to check whether the installation is successful, as shown in the following figure:

The output version number indicates that Golang has been successfully installed.

3. Environment variable configuration

After Golang is installed on your computer, you need to set some environment variables to enable its functions. You can follow the steps below to set it up:

1. Open "This PC", click "Properties", and select "Advanced System Settings".
2. Click the "Advanced" tab and click "Environment Variables".
3. Click "New" in "User Variables".
4. In the new window:

Variable name: GOPATH

Variable value: The Golang root directory path you want to set, such as D:\go\

5. Click "OK".

4. Using Golang

After installation and configuration, you can start using Golang to write code. You can use any code editor you are familiar with (such as VS Code, Sublime Text, etc.) to create a new source file with the extension ".go".

The following is a simple Golang code that can print out "Hello, World!":

package main    //包名
import (      //引用的包
    "fmt"
)
func main() {
    fmt.Println("Hello, World!")
}

After you save the code and name it main.go, you can enter the following on the command line Run it with the command:

go run main.go

The output will be "Hello, World!"

Summary

In this article, we introduced how to download, install and configure Golang, And a simple program is provided for demonstration. I hope this article will help you learn and use Golang.

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