golang --iota 用法

package main

import "fmt"

func main() {

	const (

		a = iota //0

		b        //1

		c        //2

		d = "ha" //独立值，iota += 1

		e        //"ha"   iota += 1

		f = 100  //iota +=1

		g        //100  iota +=1

		h = iota //7,恢复计数

		i        //8

	)

	fmt.Println(a, b, c, d, e, f, g, h, i)

}

　输出结果：

0 1 2 ha ha 100 100 7 8