Golang function winddowns and how to set environment variables under the linux platform

Golang is a programming language developed by Google. Its simplicity, efficiency, concurrency and scalability have become increasingly popular among developers. In the process of developing Golang applications, the setting of environment variables is a very important step, because environment variables can control the behavior and performance of the entire application. This article will introduce how to set Golang environment variables under Windows and Linux platforms.

Set Golang environment variables under Windows platform

1. Download Golang

First, you need to download the Golang installation package from the official website, the address is: https ://golang.org/dl/. After the download is complete, double-click the installation package and follow the wizard to complete the installation.

2. Configuring environment variables

In Windows 10 system, right-click "This PC", select "Properties", and enter "Advanced System Settings". Under the "Advanced" tab, click the "Environment Variables" button to open the "Environment Variables" window.

In the "System Variables" area, find the "Path" variable and click the "Edit" button. Add the Golang installation path at the end of "Variable Value", usually "C:Go in", and then click the "OK" button to save. This process may require a computer restart to take effect.

3. Test environment variables

Open the command prompt and enter the command "go version". If you can see the version information of Golang, it means that Golang has successfully configured the environment variables. .

Set Golang environment variables under Linux platform

1. Download Golang

Similarly, you need to download the Golang installation package from the official website, the address is: https://golang.org/dl/. Once the download is complete, unzip and move the folder to the target location such as /opt/go/.

2. Configure environment variables

Open a terminal window and enter the command "sudo nano /etc/profile" to open a text editor and edit the system's global environment variables .

Add the following code at the end of the file:

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

These commands define GOROOT, which points to the installation path of Golang; GOPATH, which is used to store the source code of Golang; PATH, which adds GOROOT and GOPATH to the system path.

After editing is complete, save and close the file. Use the command "source /etc/profile" to update the environment variables of the current terminal.

3. Test environment variables

Enter the command "go version" in the terminal window. If you can see the version information of Golang, it means that Golang has successfully configured the environment variables.

Summary

The methods of setting Golang's environment variables are different under Windows and Linux platforms, but they are all very simple and easy. Properly setting environment variables is crucial for developing Golang applications to ensure that the application can run properly. Therefore, it is recommended that developers be sure to set environment variables according to the above method after installing Golang.

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