Vá variáveis ​​globais em Golang

// Program to illustrate global variable
package main
import "fmt"
// declare global variable before main function
var sum int
func addNumbers () {

  // local variable
  sum = 9 + 5
}

func main() {

  addNumbers()

  // can access sum
  fmt.Println("Sum is", sum)

}
SAMER SAEID