Go language series: how to build a go language development environment?

Preface

from 【

Go  Language series ：Go  Where are from ,Go  Where are you going ？

】 This article begins with , We will explore

Go

The charm of language , Peel its heart layer by layer , Then eat it through and fix it . It will open today

Go

Basic knowledge of language introduction , Learning a new language also requires building a development environment , Only in this way can we control it .

So the theme of this article is to teach you how to

Go

Languages build development environments in different systems . Here we mainly introduce the installation methods of two systems , My main hardware is only

Window

Systems and

Mac

System , So please refer to the installation methods of other systems

Dog's lessons

.

good , Don't gossip , Now let's go straight to the topic →

Build development environment

about

Go

language , You also need to learn from the configuration of the environment , Come on, come on , Now let's serve your guests →

One 、Go download

Go

Language downloads can go to the following

2

Website downloads ：

• Golang
  China : 
  https://golang.google.cn/dl/

• Go
  Language website : 
  https://golang.org/dl/

notes ：

Go

I have never visited the official website address of the language successfully , So I recommend

Golang

Chinese link to download

Input

Golang

Link address of China , The following figure will appear after successful access ：

Then according to your own computer system , Choose the corresponding installation package by yourself , Click download .

Here's the thing , What does the information displayed on the installation package mean , as follows ：

• Install the system supported by the package

• The system version and supported by the installation package
  CPU
  digit

• 1.18.4
  Indicates the version number of the current installation package , The Middle English represents the system ,
  amd64
  Represents a match
  64
  Bit
  CPU

• The file size of the installation package

After downloading the corresponding installation package , Then go to the corresponding installation tutorial .

Two 、Windows System installation Go course

Now let's demonstrate in

Windows

Installation on system

Go

Language environment .

2.1  Download installation package

First of all to

Golang China

download

Windows

System installation package , as follows ：

2.2  Start installation

When the download is complete , Double click the installation package to start the installation , Here's the picture ：

All the way back

Next

,  Here's the picture ：

After installation , You can go to

C:\Program Files\Go

Under the table of contents , Look at the directory structure , as follows ：

Now let's explain the directory shown above , as follows ：

• api
  ： Versions
  api
  Change the difference

• bin
  ：
  go
  Compiler compiled by source package 、 Formatting tool 、 Documentation tools, etc

• doc
  ： English version of
  go
  file

• lib
  ： Some library files that depend on

• misc
  ： Relevant documents for other purposes , Such as
  Android
  Platform compilation

• pkg
  ：
  windows
  Middleware compiled by the platform

• src
  ： Standard library source code

• test
  ： Test force

2.3  Check Go Is the installation successful

After the installation, verify whether the installation is successful , open

cmd

window , Execute the following command ：

go version

If the following figure appears , That is to say, the installation is successful , as follows ：

Okay , Come here

Windows

Installation on system

Go

The tutorial of language environment is like this , If you are interested , Try it now

3、 ... and 、Mac System installation Go course

Mac

System installation

Go

Language environment , In fact, there are pits , Now let's talk about the problems in my actual operation →

3.1  Mode one ： adopt brew install

The difficulty of this installation is that you have to install

brew

, Like I haven't installed it on my computer before , So now when you install it, you will encounter a pit , As follows :

perform

brew Official website

Command to install

brew

：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"


After entering the command enter , You will find that the download speed is very slow , And then it's super wrong ; Repeat the command to download , Still can't solve . This is what I call pit , install

brew

It doesn't work , It should be limited , So hope to use

vpn

To solve the , Why didn't you buy

vpn

, So go online and choose other methods , Later, I tried to install it by adopting the method suggested on the Internet , Later, it was successfully installed

brew

, As follows ：

• Turn on the phone hotspot ,
  mac
  Computers connect to mobile hotspots

• Then input
  brew
  Official website installation order , You will find that the download speed is very fast , Final installation successful

The digression above is

brew

install

go

Premise of environmental installation , So it's necessary to have a chat . Then turn around , Keep talking

Mac

System installation

Go

Language environment →

Through the installation above , Now you can use the command to install

go

了 , as follows ：

brew install go 

perhaps

brew install golang

3.2  Mode two ： Download installation package

The second way is to

Golang China

download

Mac

System installation package , as follows ：

notes ： If you don't know your own

Mac

Which package is supported , Then you can download them all , Then the computer will prompt you whether you support .

When the download is complete , Double click the installation package to start the installation ：

Click on

continue

, Until it appears

Installation successful

Just the logo .

3.3  Check Go Is the installation successful

Some online tutorials also need to configure what environment variables , But after I download and install , No environment variables are configured , You can also enter... At the terminal

go version

Command can output

go

Version information of , as follows ：

Four 、 Write the first Go Language program

After the development environment is set up , The next step is to test the results . According to custom , The first program written in every language is

hello world!

. Now let's practice →

4.1  Start

Create a new one

helloworld.go

file , The code is as follows ：

package main

import "fmt"

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


The output of the above code is ：

Hello World!

4.2  perform

perform

go

There are two ways of programming , as follows ：

Mode one ： adopt

go run

command

go run helloworld.go

give the result as follows ：

Mode two ： adopt

go build

command , Compile the above code into an executable file , Then I see one in the directory

helloworld

The executable of , adopt

helloworld.exe

Command to execute it , You can output the result , as follows ：

Here we are , build

Go

The installation tutorial of the language development environment is finished , In fact, there is no pit in the whole process , Almost all can be installed smoothly and executed successfully . As for the pits found during , After reading the article, you can skip it . As for the system, other small partners , You can find the corresponding tutorial on the Internet to install , This is mainly because I have only

window

Systems and

mac

System , Otherwise, we can continue to demonstrate the installation methods of relevant systems for you .

If you see other tutorials that are more complex than this article , Please skip as soon as possible , It's a waste of time , Not grounded at all , The last is to draw water with a bamboo basket . For our new entrants

Go

For people , Too complicated process is torture , Getting started as soon as possible and being able to code and compile is the king .

Afterword

partners , If you think this article is of some help to you , Click or pay attention before you leave ^_^ . In addition, if there are problems or incomprehensible parts in this article , Welcome to comment in the comment area and point out , Let's discuss and encourage .