Golang environment construction guide: simple download and configuration steps

Golang is a relatively new programming language. Its unique design and performance advantages have attracted the attention of many developers. Before starting to use Golang for development, you first need to set up the corresponding development environment. This article will give you a detailed introduction to the entire process from downloading to configuring Golang, helping you quickly complete the environment setup and easily start using this excellent programming language.

Step One: Download Golang

First, we need to go to the Golang official website to download the Golang installation package suitable for your operating system. You can find installation packages for different operating systems such as Windows, Mac and Linux at https://golang.org/dl/. Click the corresponding link to download.

Step 2: Install Golang

Installing Golang is usually very simple, just follow the installation wizard step by step. For Windows systems, you only need to double-click the downloaded installation package, and then follow the wizard prompts to select the installation location and other settings. For Mac and Linux systems, you can install it by running the installer from the command line.

After the installation is complete, you can verify whether Golang is installed successfully by entering go version in the command line. If the installation is successful, Golang version information will be output.

Step 3: Configure Golang environment variables

In order to use the Golang command line tool in any directory, we need to configure the corresponding environment variables. The following are the specific steps to configure environment variables:

Windows system:

1. Right-click "Computer" or "This PC" and select "Properties";
2. Click "Advanced System Settings", click "Environment Variables" in the pop-up window;
3. In "System Variables", find the variable named Path and double-click to open it;
4. Add the Golang installation directory at the end of the variable value, such as C:Go in;
5. Click OK to save the configuration.

Mac and Linux systems:

1. Open the terminal;
2. Edit .bash_profile or .bashrc file, add export PATH=$PATH:/usr/local/go/bin;
3. Run source .bash_profile or source .bashrc Make the configuration take effect.

After the configuration is completed, you can enter go version in the command line to verify whether the environment variables are configured successfully.

Step 4: Write and run the first Golang program

Now that your Golang environment has been set up, let’s write and run the first Golang program. The following is a simple sample program:

package main

import "fmt"

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

Save the above code as a hello.go file, then enter the directory where the file is located on the command line and execute go run hello.go command to run the program. If you see the output Hello, Golang!, congratulations on successfully writing and running your first Golang program!

Summary

Through the guide in this article, you should have successfully completed the Golang environment setup and successfully run the first program. As a modern programming language, Golang has the characteristics of simplicity, efficiency, and concurrency, and is suitable for various development needs. I hope this article will be helpful to you, so that you can get started with Golang faster and enjoy the fun of programming!

The above is the detailed content of Golang environment construction guide: simple download and configuration steps. For more information, please follow other related articles on the PHP Chinese website!