Constants

Constants are declared like variables, but with the const keyword.

Constants can be character, string, boolean, or numeric values.

Constants cannot be declared using the := syntax.

constants.go

package main
import "fmt"
const Pi = 3.14
func main() {
    const World = "世界"
    fmt.Println("Hello", World)
    fmt.Println("Happy", Pi, "Day")
    const Truth = true
    fmt.Println("Go rules?", Truth)
}