How to learn golang? (Getting Started)

In recent years, Golang has been one of the popular languages ​​that have attracted much attention in the programming world, and Golang is not an easy language for beginners to master. So the question is, how to learn Golang?

1. Learning environment

First of all, we need to set up a Golang learning environment. In learning, we need to use Golang version 1.11 or above.

1.1 Install Golang

We can download the installation package of the corresponding system from the official website and install it. After the installation is completed, we can use the following command to check whether the installation is successful:

go version

If the version number is displayed, it means that Golang has been installed successfully and you can proceed to the next step.

1.2 Configure GOPATH

GOPATH environment variable is used to store all Golang code. It can be regarded as the "working directory" of the Go language. We need to add GOPATH to the system environment variable , and then place our golang source code according to the src, bin, pkg directory structure under GOPATH.

export GOPATH=/Users/username/go

Run the above command to change the default value of the GOPATH environment variable. Where username is your username. If you use zsh, you need to add this command every time you start the terminal, or add this command in ~/.zshrc.

2. Learning materials

Before learning any new technology, you should have a general understanding of the technology. The best way to understand Golang is through professional Golang learning materials.

2.1 Official Documentation

Golang official website provides very detailed official documentation. The official documentation is not only detailed, but also covers all aspects of Golang, including grammar, standard library, etc. Very useful for beginners.

2.2 Books

If you prefer paper learning materials, you can consider reading some introductory and intermediate Golang books, such as "Go Language Programming (English Edition)", "Go Web Programming (Chinese version)" etc.

In addition, you can also use some excellent online tutorials and video resources, such as "Go Programming Basics", "Go Concurrent Programming Basics Tutorial", etc.

3. Practical experience

After acquiring theoretical knowledge, we still need to apply it to practice, so that we can truly master Golang.

3.1 Practice Project

In the process of learning, you can use the knowledge you have learned to develop your own practice projects, and deepen your understanding and mastery of Golang through project implementation, such as implementing a simple translation tool , Web servers, crawlers, etc.

3.2 Participate in open source projects

If you feel that the practice project is not difficult enough, you can also try to join an open source project, which can not only improve your skills, but also make friends with more Golang developers , learn more technical information and learn more practical experience.

4. Advanced Learning

Through the above learning methods, we can have a preliminary grasp of Golang, but are these really the only knowledge points of Golang? of course not. Some advanced features, such as Unsafe, GC optimization, etc., often require a lot of practical experience and in-depth understanding to master.

4.1 Read advanced books

In the advanced stage of learning, we need to have an in-depth understanding of the advanced features of Golang. The best way at this time is to read some advanced Golang books, such as "Advanced Programming in Go Language" , "Go Web Programming Practice", etc.

4.2 Learning framework source code

If you want to become a Golang master, it is also very important to understand and master Golang framework development and source code, such as Gin, beego, Echo and other frameworks. Reading the source code of the framework plays a very good role in improving one's technical ability.

5. Summary

In short, learning Golang requires some time and patience, and requires continuous practice and exploration to better understand and master it. Through effective learning methods and practice, I believe everyone can become a Golang master!

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