Detailed explanation of golang installation and configuration

Golang, also known as Go language, is an open source programming language developed by Google. It is a fast and concise programming language that focuses more on high performance and high concurrency of applications than programming languages ​​such as Python and Java. Installing and configuring Golang is the first step to using the language. In this article, we will explain how to install and configure Golang.

1. Install Golang

Installing Golang is very simple. You only need to download the Golang installation package from the official website golang.org. Please follow the steps below:

1. Visit golang.org.
2. Click on the Downloads tab.
3. Select your operating system (Windows, Mac, Linux, etc.). In this article, we will explain how to install and configure Golang on Windows.
4. Click the "Download Go" button to download the Golang installation package.
5. Find the executable installation package in the browser download list and run it.
6. During the installation process, you need to specify the installation path and environment variable settings. By default, Golang will be installed in the C:/Go directory and added to the PATH environment variable. Make sure these parameters are correct.
7. Click the "Install" button and wait for the installation to complete.

Now, you have successfully installed Golang.

2. Set environment variables

When installing Golang, environment variables have been automatically set. However, if the environment variables are not set correctly, you should set them manually by following the steps below.

On Windows, you can set environment variables by:

1. Click the Start button and search for "environment variables".
2. Click "Edit System Environment Variables".
3. Click the "Environment Variables" button.
4. Find the Path option in the "User Variables" and "System Variables" sections and click "Edit".
5. Click "New" in the edit environment variable window and enter the path to the Golang binary file. Please note that the default path for Golang binaries is C:\Go\bin.
6. Click the "OK" button to save the settings.

Now you can use Golang commands or Golang programs from the command line or PowerShell.

3. Verify installation and run Hello World

Now, you are ready to verify that Golang is installed correctly and run your first Golang program: Hello World.

1. Open the command line or PowerShell.
2. Run the following command: go version

This will display the Golang version you have installed.

3. In the command line, create a new Golang project directory, for example: C:\GoProjects.
4. Create a file named hello.go in this directory and enter the following code:

package main

import "fmt"

func main() {

fmt.Println("Hello, World!")

}

5. Navigate to the C:\GoProjects directory on the command line.
6. Run the following command: go run hello.go

This will compile the code and start the program, outputting "Hello, World!" to the console.

Congratulations, you have successfully installed and configured Golang, and run your first program - Hello World.

Conclusion

Golang is a popular high-performance programming language, and installing and configuring it are basic steps for using the language. Detailed instructions on how to install and configure Golang, set environment variables, and verify that Hello World is installed and running are provided in this article. If you've mastered these basic steps, hopefully you can write more powerful programs in Golang.

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