import "fmt"

import "time"

func goFunc1(f func()) {

        go f()

}

func goFunc2(f func(interface{}), i interface{}) {

        go f(i)

}

func goFunc(f interface{}, args... interface{}) {

        if len(args) >  {

                go f.(func(...interface{}))(args)

        } else if len(args) ==  {

                go f.(func(interface{}))(args[])

        } else {

                go f.(func())()

        }

}

func f1() {

        fmt.Println("f1 done")

}

func f2(i interface{}) {

        fmt.Println("f2 done", i)

}

func f3(args... interface{}) {

        fmt.Println("f3 done", args)

}

func main() {

        goFunc1(f1)

        goFunc2(f2, )

        goFunc(f1)

        goFunc(f2, "xxxx")

        goFunc(f3, "hello", "world", , 3.14)

        time.Sleep( * time.Second)

}