q014.go有误 about interview-go HOT 5 CLOSED

type query func(string) string

func exec(name string, vs ...query) string {
    ch := make(chan string)
    fn := func(i int) {
        ch <- vs[i](name)
    }
    for i, _ := range vs {
        go fn(i)
    }
    return <-ch
}

func main() {
    ret := exec("111", func(n string) string {
        return n + "func1"
    }, func(n string) string {
        return n + "func2"
    }, func(n string) string {
        return n + "func3"
    }, func(n string) string {
        return n + "func4"
    })
    fmt.Println(ret)
}