package main

import "fmt"
func main() {
    //1、iota常量自动生成器 每隔一行 自动累加1
    //2、iota给常量赋值
    const (
        a = iota //0
        b = iota //1
        c = iota //2
    )
    fmt.Printf("a = %d,b = %d,c = %d\n", a, b, c)
    //3 iota 遇到const 就会重置为0
    const d = iota
    fmt.Printf("d = %d\n", d)
    //可以只写一个iota
    const (
        a1 = iota //0
        b1        //1
        c1        //2
    )
    fmt.Printf("a1 = %d,b1 = %d,c1 = %d\n", a1, b1, c1)
    //5  如果在同一行 值都一样
    const (
        i          = iota
        j1, j2, j3 = iota, iota, iota
        k          = iota
    )
    fmt.Printf("i = %d,j1 = %d,j2 = %d,j3 = %d\n,k = %d\n", i, j1, j2, j3, k)
}