Learn to configure the Golang development environment: simple introduction to Go language deployment and installation

Golang is a relatively young programming language developed by Google and officially released in 2009. Its design goal is to improve programmer productivity and code maintainability. With the rapid development of cloud computing, big data and other fields, Golang's application scope is also expanding. In this article, we will introduce how to learn the deployment and installation of Golang from scratch, easily master the development environment configuration of the Go language, and provide specific code examples.

1. Download Golang

First, we need to download the Golang installation package. You can visit Golang's official website https://golang.org/, find the latest version on the homepage and download the corresponding installation package. Choose the appropriate version according to your operating system. For example, choose the Windows version for Windows systems and the Linux version for Linux systems.

2. Install Golang

After downloading the installation package, select the corresponding installation method according to the operating system. Taking the Windows system as an example, double-click the installation package to install it and follow the step-by-step wizard. After the installation is completed, enter the following command in the command line window to verify whether the installation is successful:

go version

If the Golang version number is successfully displayed, the installation is successful.

3. Configure environment variables

In order to use Golang commands on the command line, you need to configure environment variables. Taking the Windows system as an example, add Golang's bin directory to the system's Path environment variable. Enter the following command on the command line to set the environment variable:

setx PATH "%PATH%;C:Goin"

4. Write the Hello World program

Next, let us write the first Golang program - Hello World. Open a text editor and enter the following code:

package main

import "fmt"

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

Save the above code as a hello.go file, then switch to the directory where the file is located on the command line, enter the following command to compile and run the program:

go run hello.go

If "Hello, World!" is successfully output, it means that you have successfully written and run your first Golang program.

5. Use Go Module to manage dependencies

Golang recommends using Go Module to manage project dependencies. Execute the following command in the project root directory to initialize Go Module:

go mod init <module-name>

where <module-name> is your project name. Then, you can use the go get command to download the required dependency packages.

6. Build an executable file

If you want to compile the program into an executable file, you can use the following command:

go build <文件名>.go

After executing the above command, it will be in the current directory Generate an executable file and run the executable file directly.

Through the above steps, you have successfully learned how to deploy and install Golang from scratch, configure the development environment, and write the first Golang program. I hope this article can help you get started with Golang quickly and make achievements in the development field of Golang in the future.

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