golang的iota

const (
	_ = iota
	one
	two
	three
)

const (
	TWO = 1 << (2*iota)
	FOUR
	EIGHT
)


func main() {
	fmt.Println("KB:",KB)
	fmt.Println("three:",three)
}

　　1.iota而非itoa

      2.iota可以变量自增