In recent years, Golang (or Go language) has been hailed as a new generation of efficient programming language. It has the advantages of high concurrency, excellent memory management, fast compilation speed, and easy to learn and use. Therefore, more and more developers are beginning to pay attention to and use Golang. This article aims to provide you with an installation and testing guide for Golang, hoping to be helpful to Golang beginners.
1. Environment preparation
Before you start, you need to confirm whether the following environment is fully prepared:
2. Golang installation
You can download it from the Golang official website (https://golang.org/dl/) Download the Golang installation package. Select the appropriate installation package to download based on your operating system and system bitrate. It is recommended to download the latest version.
Windows system
After the download is complete, double-click the installation package and follow the prompts on the boot interface to install. By default, Golang will be installed in the root directory of drive C. You can customize the installation path, but please make sure there is no existing Golang folder in this path.
Mac and Linux systems
You can install directly using the terminal. Open the terminal and enter the directory you want to install, such as the /usr/local/ directory. The terminal command is as follows:
$ cd /usr/local/
Then, download through the wget command Corresponding Golang installation package:
$ wget https://golang.org/dl/go1.17.1.linux-amd64.tar.gz
After downloading, use the tar command to decompress and install Package:
$ tar -xzvf go1.17.1.linux-amd64.tar.gz
Finally, add Golang’s bin directory to the path environment variable:
$ export PATH=$PATH:/usr/local/go/bin
3. Test Golang
After the installation is complete, you can perform the following tests to ensure that Golang has been successfully installed:
$ cd /usr/local/go/bin
$ go version
If you see the version number of Golang, congratulations, you have successfully installed Golang!
4. Write a Hello World program
Next, we can try to write a Hello World program in Golang to become familiar with Golang’s programming syntax:
$ vim hello.go
package main
import "fmt"
func main() {
fmt.Println("Hello, World!")
}
$ go run hello.go
If everything is OK, you will see "Hello, World! "This output result.
5. Summary
Through the guidance of this article, you have successfully installed and tested Golang, and have written your first program. Next, through more learning and practice, you can deeply master the Golang programming language and apply it to your actual projects.
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