How to build a project in golang? (step analysis)

Golang is an efficient, simple, safe and fast development language, so it is becoming more and more popular among developers. In this article, we will explore how to build a Golang project.

Basic settings

Before you start, you need to make sure that you have installed Golang correctly and set the GOPATH environment variable. This variable should point to your working directory, for example: /Users/yourusername.

Before creating a new project, we recommend creating a folder called "src" and adding it to the GOPATH environment variable.

First, open a terminal and enter the following command to create a new project named "test":

$ mkdir $GOPATH/src/test

This command will create a new project named "test" in your GOPATH/src folder test" new folder.

In this newly created folder, create a file called "main.go", which will be the entry point for your project.

Next, open the "main.go" file and add the following code to the file:

package main

import (
   "fmt"
)

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

This line of code will print "Hello" on the screen using the Println function from the fmt library , World!”.

Save the file and exit the editor.

Compile and run the project

After writing the code, we need to compile and run the project in the terminal.

In the project directory, enter the following command to compile the code:

$ go build

This will create an executable file named "test".

To run the project, just enter the following command:

$ ./test

This will output "Hello, World!" to your terminal.

Project Structure

In a real project, your file structure should be very clear and organized. Typically, a Golang project includes the following files and folders:

project
   ├── cmd
   │   └── main.go
   ├── internal
   ├── pkg
   └── README.md

In this structure, the "cmd" folder contains the project's entry point, the "internal" folder contains the project's private code, and the "pkg" file Folders contain reusable common code.

Summary

In this article, we explored how to build a Golang project. We discussed basic setup, writing code, compiling and running the project, and also discussed a proper project structure for use in real projects.

Developers can follow these steps to create their own Golang projects and build efficient, secure and reliable applications using this powerful language.

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