package main
import (
"fmt"
)
// Package-level variable
var counter int
func incrementCounter() {
counter++
fmt.Println("Counter:", counter)
}
func main() {
incrementCounter()
incrementCounter()
incrementCounter()
incrementCounter()
incrementCounter()
}
/*
run:
Counter: 1
Counter: 2
Counter: 3
Counter: 4
Counter: 5
*/