How to install and configure the go language environment on mac

To use the Go language on a Mac computer, you need to install the Go language development environment first. Go language is a very powerful programming language with fast, efficient and reliable functions, making it very suitable for writing high-performance applications. This article will introduce how to install the Go language development environment on Mac, allowing you to quickly start your Go language programming journey.

Step 1: Download the installation package

First, you need to download it from the official website (https://golang.org/dl/) The latest version of the Go language installation package. Choose the installation package suitable for Mac system.

Step 2: Install Go language

After the download is completed, double-click to open the installation package and follow the prompts to install.

Step 3: Configure Go language environment variables

Open the terminal and enter the following command:

$ vim ~/.bash_profile

Enter the following content in the open file, And save:

export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export PATH=$GOROOT/bin:$PATH

Among them, GOROOT is the installation path of Go language, GOPATH is your workspace, that is, the source code storage path of Go language.

After completing the saving, execute the following command:

$ source ~/.bash_profile

The configuration will take effect immediately. Then, you can run the following command to check whether Go has been successfully installed:

$ go version

The output should be the version number of the Go language. If you see the version number, you have successfully installed the Go locale.

Step 4: Install the editor

When developing Go language programs, we need to use an editor. Currently, the more popular editors include Visual Studio Code, Sublime Text, Atom and vim. This article uses Visual Studio Code as an example to illustrate:

1. First, download the installation package from the official website (https://code.visualstudio.com/) and install it.
2. Open Visual Studio Code, click "Extensions" in the left menu bar, search and install Go.
3. After the installation is complete, you can press the "Ctrl Shift P" shortcut key and enter "Go: Install/Update Tools" to install the Go language extension tools. This will automatically install various tools and plug-ins for the Go language, including code analysis, debuggers, testing tools, etc.

Step 5: Write the first Go program

After completing the above steps, now let’s write a simple Hello World Go program:

package main

import "fmt"

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

Save the file, then enter the following command on the command line to run the program:

$ go run filename.go

The output should be:

Hello, Go!

At this point, you have successfully installed it on your Mac Go language environment and ran the first Go program. Now you can start enjoying the efficient and fast programming experience brought by Go language.

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