How to use golang source code

Golang (also known as Go) is an open source programming language developed by Google and officially released in 2009. Its characteristics include efficiency, simplicity, concurrency, security, etc., and it has become a very popular development language in current Web back-end development.

Since Golang is open source, we can learn and use it by consulting its source code or writing Golang programs ourselves. This article will briefly introduce how to use Golang source code to help readers get started quickly.

1. Download Golang source code

First, we need to download the Golang source code from the official website. Open the official website https://golang.org/, enter the "Download" page, and select the corresponding operating system to download.

After the download is completed, unzip the downloaded source code file to the local directory.

2. Compile Golang source code

After downloading the source code to the local, we need to compile the source code to get an executable program.

Enter the source code directory and execute the following command:

./all.bash

This command will compile, test and install Golang. This process may take some time, depending on computer configuration and Golang version.

When the compilation is successful, a bin folder and a pkg folder will be generated in the directory.

3. Using Golang source code

After we have the compiled Golang program, we can start using the Golang source code.

First, enter "golang" in the command line terminal and press Enter to enter Golang's interactive command line window.

In this window, we can enter Golang statements for code testing and debugging.

At the same time, by editing local Go code files, you can use Golang source code to compile, build and run Golang programs.

For example, create a new file hello.go:

package main

import "fmt"

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

Then execute the following command in the command line terminal:

go run hello.go

to compile and run the program. The output result is:

Hello, Golang!

4. Learn Golang source code

In addition to using Golang source code for development, we can also learn the internal principles of Golang by reading Golang source code.

The structure of Golang source code is very clear, and it is mainly divided into the following parts:

• src: Golang source code;
• bin: stores Golang binary Execution file;
• pkg: stores Golang library files;
• doc: stores Golang documentation files.

In the src directory, each folder represents a standard library or a tool, which can be read as needed. When reading the source code, you can gradually understand the program structure, function functions and calling relationships in conjunction with official documents.

Summary

Through the above introduction, we can see that it is very simple and convenient to use Golang source code to write and debug. When we need to learn more about the underlying implementation of Golang, we can also refer to the Golang source code for learning. I believe that readers with a foundation in Golang programming will gain a deeper understanding of Golang's efficiency, simplicity, and security by studying Golang source code.

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