Is Golang free or paid?

Title: Is Golang free or paid? Discuss Golang’s license types and related code examples

In today’s software development field, Golang (Go language) is favored by developers as an efficient, concise, and easy-to-use programming language. However, whether you need to pay for the use of Golang is a topic that has attracted much attention. In this article, we will delve into Golang's license types and provide relevant code examples to help readers better understand its authorization methods.

1. Golang’s license types

First, let us understand the license types of Golang. Golang uses the BSD license, which is a free software license that allows users to freely use, modify and redistribute the code. Specifically, Golang uses the two-clause BSD license among the three BSD licenses, also known as the simplified BSD license.

The main point of the simplified BSD license is to allow users to obtain the source code from the software and include the copyright notice of the original software in advertising. This means that Golang is a free and open source programming language, and users can use, modify and distribute Golang code for free. So, overall, Golang is a free programming language that can be used without paying anything.

2. Golang related code examples

Next, we will provide some Golang code examples to help readers better understand how to use Golang for free. The following is a simple Hello World program example:

package main

import "fmt"

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

The above code is a basic Golang program, which outputs "Hello, World!". Through this simple example, we can see that Golang's simplicity and ease of use make code writing easy and efficient.

In addition, let us look at a sample code for building an HTTP server using Golang:

package main

import (
    "fmt"
    "net/http"
)

func handler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintf(w, "Hello, World!")
}

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8080", nil)
}

The above code shows how to use Golang to build a simple HTTP server locally and access the root path returns "Hello, World!". Through this example, we can experience the power and convenience of Golang in network programming.

3. Conclusion

In summary, Golang, as an excellent programming language, adopts a free BSD license, allowing users to freely use, modify and distribute its code. Through the introduction and code examples of this article, readers can better understand Golang's license types and how to use it for free. I hope this article can help readers better understand Golang's authorization method, so as to better utilize this excellent programming language for software development.

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