golang中const 与 iota自增常量 实现递归

package main

import "fmt"

const (
	a, g = iota, iota
	b    = iota
	c    = iota
	d    = iota
	e    = -4
	f    = iota
)

func main() {
	fmt.Printf("%T ,%v\n", a, a)
	fmt.Printf("%T ,%v\n", b, b)
	fmt.Printf("%T ,%v\n", c, c)
	fmt.Printf("%T ,%v\n", d, d)
	fmt.Printf("%T ,%v\n", e, e)
	fmt.Printf("%T ,%v\n", f, f)
	fmt.Printf("%T ,%v\n", g, g)

}

同行声明值一样，首行0。iota紧跟关键字首行出现时是0, 指定行后，继续递归