Golang installation guide: concise and easy to understand, quickly master the installation skills

Golang installation graphic tutorial: clear and easy to understand, quickly master the installation skills, need specific code examples

1. Introduction to Golang
Golang (also known as Go language ) is an open source programming language developed by Google. It was designed in 2007 and officially released in 2009. Golang is favored by developers for its efficient concurrent programming and concise syntax, especially in the field of web development. This article will take you step by step to learn how to install Golang and give corresponding code examples.

2. Install Golang

1. Visit the official website
   Enter https://golang.org in the browser to enter the official website.
2. Download the installation package
   On the homepage of the official website, find the download button and click to enter the download page.
3. Choose the appropriate version
   On the download page, select the version suitable for your operating system, such as Windows 64-bit version or Mac OS version, and click download. Make sure you select the latest version to take advantage of the latest features and improvements.
4. Install Golang
   After the download is completed, double-click the installation package to install. Windows users can follow the wizard to complete the installation, while Mac users can drag and drop the downloaded .dmg file into the application folder.
5. Configuring environment variables
   In Windows systems, environment variables need to be set manually. Right-click "My Computer", select "Properties", then click "Advanced System Settings" to enter the "Environment Variables" window. In the user variables or system variables, find the variable named "Path", double-click it, and add the Golang installation path at the end.

Taking the Windows system as an example, if you install Golang in the root directory of the C drive, you can set the path to "C:go in". Note that if the Path variable already exists, please do not overwrite the original content, but add a semicolon ";" at the end of the original content.

6. Verify successful installation
   Open the command line terminal (in Windows system, press the Win R key, enter "cmd", and then click "OK"), enter the "go version" command, If the Go version number is displayed, the installation is successful.

3. Write sample code
The following is a simple Hello World program example to help you verify whether the installation is correct.

Code example:

package main

import "fmt"

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

Save the above code as hello.go file. Then in the command line terminal, use the cd command to switch to the directory where the code is located, and then execute the following command:

go run hello.go

If "Hello World!" is output, it means that the code is running correctly.

4. Start your Golang journey
Congratulations on successfully installing Golang and successfully running a Hello World program. Now you're ready to start learning and writing more Golang code!

Golang has the characteristics of simplicity, efficiency and concurrent programming, and is a programming language very suitable for web development. I hope the installation tutorial in this article can help you get started with Golang and start developing quickly.

I wish you positive results in your learning and development process in Golang!

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