How to compile golang

Go is a very popular programming language. Its advantages are simple syntax, high efficiency, and can easily handle large amounts of data and high concurrency. To run a Go program, you need to compile the code into machine language first. This article will introduce how to compile a Go program.

The first step is to confirm the installation of the Go language environment

Before compiling the Go program, you need to confirm that you have installed the latest version of the Go language environment. The simplest way is to enter the following command in the terminal:

$ go version

If you have installed the Go language environment, the terminal should output the Go version information, otherwise you need to download the latest Go language from the official website Install the package.

Second step, write a Go program

Before preparing to compile a Go program, you need to write an executable Go program. In this example, we'll write a simple "Hello, World!" program. Open a new file in the editor and enter the following code:

package main

import "fmt"

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

Save the file and use "main" as the file name, adding the ".go" extension. For example, you could name the file "hello.go".

The third step, compile the Go program

After reading the first two steps, you are ready to compile the Go program. Open the terminal, enter the directory where the Go program is located, and then enter the following command:

$ go build

After running this command, the Go compiler will automatically compile and link the executable file and store it in the current directory. Additionally, you can specify the output file name using the "-o" option as shown below:

$ go build -o myprogram

The above command will store the executable file in a binary file with the file name "myprogram".

The fourth step, run the Go program

After compiling the Go program, you can run it and view the results. Enter the following command on the command line:

$ ./hello

You will see the following output:

Hello, World!

Summary

This article introduces four simple steps for compiling Go programs. First, you need to make sure you have the latest version of the Go language environment installed. Then you need to write an executable Go program and save it as a "main.go" file. Next, use the "go build" command to compile the Go program into an executable file. Finally, you can run the program by typing the executable file into the terminal.

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