How to run golang

Go is an efficient, reliable and highly scalable programming language. It provides a simple and straightforward way to run and compile code. Go allows developers to achieve efficient concurrency processing, fast compilation speed, and built-in GC. This article will introduce how to run and compile Go code in different environments.

1. Run Go program on local computer

If you want to run Go program on local computer, you need to download and install Go from the official website (https://golang.org) first language. Once installed, you can open a terminal and enter the following command:

go run hello.go

This command will compile and run the following code:

package main

import "fmt"

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

After the program is successfully compiled, it will output the following results:

Hello, world!

2. Running Go programs on other operating systems

If you want to run Go programs on other operating systems, such as Linux or MacOS, you need to first confirm that your operating system supports it Go language. You can download the corresponding operating system version from the official website.

Once you download and install the Go language, you can start writing your Go programs. When you finish writing, you can enter the following command in the terminal to compile and run the program:

go run hello.go

Please note that you need to first enter the directory where your Go program is located.

3. Build Go program locally

If you want to build and compile your Go program, you can use the following command:

go build hello.go

This command will compile your Go code and generate an executable file. You can enter the following command in the terminal to run your program:

./hello

Please note that you need to first enter the directory where your Go program is located and confirm that your program is in the same directory.

4. Running Go programs in Docker

If you want to run your Go programs in Docker, you need to install Docker in your local environment first. Then, you need to write a Dockerfile file, which contains the following content:

FROM golang:alpine
ADD . /go/src/hello
RUN go install hello
ENTRYPOINT /go/bin/hello

This Dockerfile file will download the golang:alpine image and add your program to the /go/src/hello path. It will then compile your program and run it. The last ENTRYPOINT directive tells Docker how to start your container.

Run the following command in the root directory of your program to build your Go program as a Docker image:

docker build -t my-go-app .

This command will take some time to complete. Once completed, you can Run your application in a Docker container:

docker run -it --rm --name my-running-app my-go-app

Please note that here we are running the application in a Docker container, so the container requires some additional configuration.

Summary

The Go language is a powerful and flexible programming language that allows you to quickly build high-quality and efficient applications. In this article, we explain how to run and compile Go programs in different environments, including running on your local computer, running on other operating systems, building programs locally, and running in Docker. I hope you can master this knowledge and better use Go language to support your projects and business.

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