golang setup tutorial

Golang is a programming language developed by Google, also known as Go. Golang is efficient, simple, safe, and cross-platform. It is currently widely used in cloud computing, big data, distributed systems, network communications and other fields. This article will introduce how to set up Golang environment in different operating systems, including installing and configuring Golang and setting GOPATH.

1. Windows system

1. Download and install Golang

First, you need to download from the official website (https://golang.org/dl/) Installation package for Windows platform. After downloading, double-click the installation package and follow the prompts to complete the installation of Golang.

2. Configuring environment variables

Under Windows systems, you need to manually configure environment variables to run Golang correctly. Click Environment Variables in System Properties, find the PATH variable, and add the Golang installation path at the end, such as C:Go in.

3. Set GOPATH

GOPATH is an important environment variable in Golang, which specifies the location of Go source code and executable files. By default, GOPATH is %USERPROFILE%go under Windows systems. This folder needs to be created manually after the installation is complete. Create three directories under this folder: src, pkg and bin, which represent the storage locations of source code, compiled libraries and executable files respectively.

4. Verify whether the installation is successful

Open the command line window and enter the command "go version". If Golang has been successfully installed, the currently installed version number will be displayed.

2. Linux system

1. Download and install Golang

Under Linux system, you can install Golang through the following command:

sudo apt-get update
sudo apt-get install golang

2. Configuring environment variables

Compared with Windows system, it is more convenient to configure environment variables under Linux system. Just add the following two lines of code to the .bashrc file:

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

3. Set GOPATH

Setting GOPATH under Linux system also requires manual creation of directories. According to your own needs, you can create a GOPATH folder in any directory and create three folders, src, pkg and bin in it. This GOPATH needs to be added to the .bashrc file later.

4. Verify whether the installation is successful

Run the command "go version" to verify whether the installation is complete.

3. Mac OS system

1. Download and install Golang

Under Mac system, you can download the .pkg installation package directly from the Golang official website, and Just follow the wizard to install it.

2. Configuring environment variables

Like Linux systems, environment variables need to be configured in the .bash_profile file in Mac OS systems. Just add the following two lines of code to the file:

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

3. Set GOPATH

Setting GOPATH in Mac OS system also requires manual creation of directories. According to your own needs, create a GOPATH folder in any directory and create three folders, src, pkg and bin. This GOPATH needs to be added to the .bash_profile file later.

4. Verify whether the installation is successful

Enter the "go version" command on the command line. If you see the version information, the installation is complete.

Summary

Golang is an efficient, simple, safe, cross-platform programming language that has been widely used in cloud computing, big data, distributed systems, network communications and other fields. This article introduces the operations of installing and configuring Golang in Windows, Linux and Mac systems, and setting GOPATH, etc. Through the introduction of this article, I believe that readers can easily complete the environment settings of Golang and start programming in this language.

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