A practical guide to setting up a Golang development environment

Practical Guide to Building a Golang Environment

Go (also known as Golang) is a modern programming language that is simple, efficient, and Its excellent concurrency performance makes it popular in cloud computing, data processing, network programming and other fields. If you want to start learning and developing Go projects, you first need to build a stable development environment. This article will introduce you in detail how to set up a Golang development environment and provide specific code examples.

Step 1: Download and install Golang

First, open the Go official website (https://golang.org/). On the homepage, you can find the steps that apply to your operation. The latest version of the Go language installation package for the system. Select the corresponding installation package according to your operating system, then download and install it.

Step 2: Configure environment variables

After the installation is completed, we need to configure the environment variables so that the system can recognize the currently installed Go language. Under Windows, right-click "This PC", select "Properties" -> "Advanced System Settings" -> "Environment Variables", find "Path" in the system variables, click "Edit", and then add Go installation The path to the directory. Under Linux system, edit the .bashrc or .bash_profile file and add export PATH=$PATH:/usr/local/go/bin at the end (assuming Go is installed in the /usr/local/go directory).

Step 3: Create a workspace

The workspace of Go language is where we store code and dependent packages. Usually, we can create a folder named "go" in the user directory and create three subfolders in it: src, pkg, bin. They are used to store source code files, compiled package files and executable files respectively.

mkdir -p ~/go/{src,pkg,bin}

Step 4: Create the first Go program

Now, we have successfully set up the Golang development environment. Let's write our first simple Go program to output "Hello, Golang!"

First, open the text editor and enter the following code:

package main

import "fmt"

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

Save the file as hello .go, and then move the file to the $GOPATH/src directory.

Step 5: Run the program

Next, we need to compile and run the program on the command line. Open the command line and enter the following command:

go run hello.go

If all goes well, you will see the output "Hello, Golang!" in the command line.

Summary

Through the above steps, we successfully set up the Golang development environment and wrote and ran the first Go program. Next, you can continue to learn the basic knowledge of Go language, master the features and development practices of Go language, and further understand and apply this excellent programming language. I hope this article can be helpful to you, and I wish you a happy learning and programming journey!

Reference materials

##Go official website: https://golang.org/
• Go language Chinese website: https:// studygolang.com/

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