golang build environment

With the rapid development of Internet technology, the software development industry has become increasingly prosperous. As an emerging programming language, Golang has attracted the attention of more and more developers due to its superior features in terms of high concurrency, memory management and performance. This article will introduce how to set up a Golang development environment.

1. Download Golang

First, visit the Golang official website (https://golang.org/) and download the Golang version that suits you. On the download page, you can see installation packages and source code packages for multiple operating systems. Taking Windows as an example here, select the installation package of the Windows operating system and download it.

2. Install Golang

After downloading, double-click the installation package to install it directly. After the installation is complete, if you need to execute the go command on the command line, you need to configure the environment variables and add the Golang executable program directory to the PATH. By default, the installation path of Golang is C:Go.

3. Set up the workspace

Regarding the workspace, the official introduction says that it can be any directory in any space. However, it is still recommended to set it under a drive letter that you are familiar with. Let’s take a look at how to set up the workspace:

1. First create a directory in any directory. For example, we create a folder named go in the D: directory as our workspace.

2. Create three subdirectories in the go directory: src, pkg, bin. These three directories are used to store source code, compiled library files, and runnable programs respectively. After creation, the entire directory structure is as follows:

3. Configure the workspace path in the editor. Here we take Visual Studio Code, which is familiar to most domestic programming enthusiasts, as an example. In VS Code, open the settings, find the go.toolsGopath configuration item, and set it to the workspace path we just created (in this case, D:go).

4. Test the Golang environment

We have completed the installation and configuration of the Golang environment, so how to verify whether our environment is correct?

1. In VS Code, create a new file named hello.go and enter the following code:

package main

import "fmt"

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

2. Enter the go run hello.go command in the terminal of VS Code. If the output is "Hello Golang !", then the Golang environment is successfully built.

3. Create a foo folder in the Go workspace, then create a file named foo.go and enter the following code:

package foo

func Hello() string {
return "Hello, Go!"
}

4. Call the foo package in the main.go file in the same directory and call the Hello() function in it.

package main

import (
"fmt"
"foo"
)

func main() {
fmt.Println( foo.Hello())
}

5. Enter the go build -o test.exe command in the VS Code terminal to generate an executable named test.exe in the current directory. document. Double-click to run the file and you will see the output as "Hello, Go!". So far, we have used Golang's compilation function, giving us a deeper understanding of the Golang compiler.

Conclusion

Golang is a very popular programming language. Its language features and efficient compiler give it unique advantages in the program development process. When learning Golang, setting up a development environment is an essential part. I hope this article can help developers quickly set up a Golang development environment and better utilize this language for development.

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