How to install Golang correctly? Brief analysis of test methods

Golang is an emerging programming language developed by Google, which has attracted more and more attention from developers in recent years. Compared with other programming languages, Golang's advantages lie in its efficient, concise code and excellent concurrency performance. Therefore, in line with the principle of learning new technologies, many developers have begun to understand and learn Golang. For beginners, the first thing to do is to install and configure Golang correctly and conduct simple tests.

1. Golang installation

1.Official website download

First, download the latest from the official websitehttps://golang.org/dl/ Golang installation package (select the corresponding version according to your operating system), and unzip it after downloading.

2. Install

Windows operating system:

Enter the decompressed folder, double-click to run the msi format installation package, and click "Next" step by step to complete. Install. After the installation is complete, you need to configure environment variables and add Golang's bin directory to PATH.

Linux, Mac operating system:

Enter the decompressed folder, use the terminal to run the installation script, enter the following command:

./configure
make
sudo make install

After the installation is completed, you need to install the Golang bin Directory is added to PATH.

For example, you can enter the following command under Linux bash:

export PATH=$PATH:/usr/local/go/bin

2. Testing of Golang

After the installation is completed, we need to test Golang to ensure that Golang correct installation and configuration.

1. Create a test file

We can first create a new test folder on the desktop or other directories, and create a new main.go file in it. The content of the file is as follows:

package main

import "fmt"

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

2. Compile and run

Enter the directory where main.go is located in the terminal and enter the following command:

go build main.go

After compilation is completed, an executable will be generated File main (main.exe under Windows), enter the following command to run:

./main

The output result is: Hello, Golang!

3. Cross-compile

Golang Another important feature is support for cross-compilation. During the development process, it is usually necessary to compile the program into executable files for different systems. We can cross-compile Windows under Linux system through the following command:

CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build main.go

Among them, CGO_ENABLED=0 means disabling CGO, GOOS=windows means compiling into an executable file under Windows system, GOARCH=amd64 means compiling into Executable files for 64-bit architecture. After compilation is completed, the executable file main.exe will be generated.

4. Summary

Through the above simple test, we can confirm that Golang has been successfully installed and configured, and can compile and run the program. Beginners can gradually become familiar with Golang's syntax and features by writing simple small programs, laying a solid foundation for further in-depth learning of Golang.

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