太颠覆我对golang的认知了，调试时明明有值，但打印出来就是零，要崩溃了

func Rem(a []string) (ret []string) {
    now:=time.Now()
    sort.Strings(a)
    finish:=time.Since(now)
    fmt.Println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
    sss:=strconv.FormatInt(int64(finish),10)
    fmt.Printf("%s",sss)
    fmt.Println("sss:"+sss)
    aaa:=int64(finish)
    fmt.Println(aaa)
    fmt.Println(int64(finish))
    fmt.Println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!")
    return ret
}

sss和aaa打印出来就是零，但是调试的时候sss和aaa明明就是有值的啊