How to set up environment in Golang

Golang is an efficient and powerful open source programming language with C-like performance and the characteristics of an interpreted language. However, before you start programming with Golang, you need to configure your environment correctly. This article will introduce the steps and considerations on how to set up a Golang environment.

Step One: Download and Install Golang
In order to start programming, please download Golang from golang.org. On the download page you can find binaries for different operating systems. These binaries include an installation package that can be installed via the instructions in the next step.

The minimum hardware configuration required to install Golang is at least 1GB of RAM and 2GB of available hard disk space with the CPU idle. Additionally, Golang requires at least 1GB of temporary space to build the source code, so make sure you take this requirement into account when setting up your temporary folder.

Step 2: Set the Golang root directory
When installing Golang to the system, please install it to a determined root directory so that it will be easier to use. The root directory can be any folder of your choice, but be sure to follow certain rules when setting it as the root directory. In the root directory, there should be three subdirectories: src, pkg and bin. These subdirectories are used to store source code files, build binaries and executable files, and installed programs respectively.

Step 3: Configure environment variables
If you have completed the installation of Golang and set its root directory, you only need to set the two environment variables $GOPATH and $PATH to start programming. $GOPATH refers to the location where Golang source code files and executable files will be stored. In the local development environment, it is recommended to set $GOPATH to the $HOME/go directory. Additionally, we need to set the $PATH variable to point to $GOPATH/bin.

On Unix or Linux systems, we can set environment variables by editing the ~/.bashrc file. Once you open the file, simply add the following lines to complete the configuration, where "/home/user/go" should be the path to your $GOPATH.

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

If you are using a Windows system, you should manually enter the "Environment Variables" page Add these variables. First open Control Panel, then select System and Security, then click System and select Advanced system settings. Next, you need to click the "Environment Variables" button, add $GOPATH under "User Variables" and $PATH under "System Variables".

Step 4: Build and run the project
Now that you have configured the Golang environment variables, you will be able to easily build and run the Golang project. Build by entering the project directory in the terminal and running the "go build" command. Once the build is complete, you can run the project using the "go run" command.

Note:

• Before configuring environment variables, please ensure that Golang is installed correctly.
• Please ensure that you comply with Golang's convention when setting the $GOPATH and $PATH variables.
• You need to enable changes to $GOPATH and $PATH to access them in the terminal.

Summary:
This article introduces how to set up a development environment for Golang and provides steps and precautions. After setting the environment variables, you will be able to write efficient and powerful Golang programs and use it to develop the best quality applications.

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