Tour of Go 2.0

Packages

Every Go program is built from packages. Your program always starts in package main — that’s the entry point.

This program uses the packages "fmt" and "math/rand". By convention, the package name matches the last element of the import path. So "math/rand" contains files that start with package rand.

Give it a shot — run the code and see what number comes out.

main.go ▶ Run in Playground 
package main

import (
	"fmt"
	"math/rand"
)

func main() {
	fmt.Println("My favorite number is", rand.Intn(10))
}