golang defer

package main

import "fmt"

func main() {
    a := test()
    fmt.Println("print a:", a)
}

func test() int {
    defer fmt.Println("A")
    defer fmt.Println("B")

    var a int = 2
    defer func() {
        a++
        fmt.Println("print defer a:", a)
    }()

    return a
}