Golang environment construction guide: detailed step analysis

Golang is a programming language designed to simplify the programming process and improve development efficiency. It has powerful concurrency features and excellent performance, so it has become more and more popular in recent years. attention and favor. Before starting to learn and use Golang, you first need to set up a Golang development environment. This article will provide you with a detailed guide to setting up the Golang environment to help you start your Golang journey smoothly.

Step 1: Install Go language

First, you need to download the latest version of the Golang installation package from the Golang official website (https://golang.org/). Select the appropriate installation package according to your operating system, and then follow the installation wizard step by step to install. After the installation is complete, you can enter the go version command on the command line to verify whether Golang is installed successfully.

Step 2: Set GOPATH

Golang needs a working directory to store source code, dependent packages and executable files. This working directory is GOPATH. You need to set GOPATH in the environment variable so that Golang can find this directory. In Windows systems, you can set GOPATH through "Control Panel -> System and Security -> System -> Advanced System Settings -> Environment Variables". In Linux and Mac systems, you can edit the ~/.bash_profile file, add export GOPATH=/path/to/your/gopath, and then execute source ~/ .bash_profile Make the settings take effect.

Step 3: Configure Go Module

Go Module is Golang’s tool for package management. It has been integrated in Golang since Go 1.11 version. You can enable the Go Module with the following command:

go env -w GO111MODULE=on
go env -w GOPROXY=https://goproxy.cn,direct

Step 4: Create the first Golang program

Now, let’s write our first Golang program. First, create a new directory under GOPATH (for example, src/hello), and then create a file named hello.go in this directory. Write the following code in hello.go:

package main

import "fmt"

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

After saving the file, open the command line, enter the src/hello directory, and execute the following commands to compile and run The program:

go build
./hello

If everything goes well, you will see the output Hello, Golang! in the command line, which marks that you have successfully set up the Golang environment and written your first Golang program.

Summary

This article provides you with a detailed guide to setting up the Golang environment. By following the above steps, you can successfully set up the Golang development environment and start your Golang journey. I hope this article can be helpful to you, and I wish you happy learning and smooth programming!

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