Detailed explanation of how to deploy golang locally

Golang is an open source programming language, and more and more developers have chosen to use Golang for development work. Golang's biggest advantage is its efficiency and parallelism, and it also performs very well in handling high-speed networks. If you also want to deploy a Golang development environment locally, then this article will provide you with a detailed guide.

Step One: Install Golang

First, you need to download the Golang installation package from the official website, and then follow the prompts to install it on your computer. On Windows, you just click "Next" to complete the installation; on Mac, you need to copy the folder to your Applications folder.

After the installation is complete, you need to configure your GOPATH environment variable. This environment variable is used to specify the root directory of the Golang project. You can configure it in Control Panel->System and Security->System->Advanced System Settings->Environment Variables.

Step 2: Install the editor

Next, you need to choose an editor to code in Golang. There are many editors to choose from, such as Visual Studio Code, Sublime Text, Atom, etc. But I would recommend using Visual Studio Code as it supports Golang development work and is also very easy to use.

You can download the installation package from the Visual Studio Code official website and install it.

Step 3: Create a project

Once you have completed the above steps, you can start creating your first Golang project. Create a folder in the workspace specified by your GOPATH environment variable and name it "hello". In this folder, create a file called "main.go" and enter the following content in it:

package main

import "fmt"

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

This program will output "Hello World". Next, you need to compile the program using the following command in the terminal: go build. After running the command, you will see a file named "hello.exe" in the "hello" folder. Then, you can run the file in the terminal: ./hello.exe. At this time, you will see "Hello World" output from the terminal.

Step 4: Run and debug the program

In Visual Studio Code, you can find a "Debug" button in the left sidebar. Click the button and you will see a file called "launch.json". This file will provide you with some instructions on how to run and debug the program.

First, you need to add the following content to the file:

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Launch Go",
            "type": "go",
            "request": "launch",
            "mode": "debug",
            "program": "${workspaceRoot}/hello",
            "env": {},
            "args": []
        }
    ]
}

Next, you need to add some breakpoints in your program. This can be done by clicking the mouse to the left of the line of code, or by pressing the F9 key. To demonstrate the debugging functionality, you can add a breakpoint before the line fmt.Println("Hello World").

Finally, you need to press the F5 key and select "Launch Go" to start debugging. At this point, Visual Studio Code will start the program and stop before your line of code. You can use the debug toolbar to step through code, view variables, and more.

Summary

Now, you have successfully deployed the Golang environment locally and created your first Golang project. Of course, you will need to learn more knowledge in the coming days, such as how to use third-party packages, multi-thread management, etc. However, I believe this guide has given you a good start.

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