如何将URL列表添加到gocolly Queue？

I want to scrape a list of url to using gocolly

func main() {
    fileName := "output.txt"
    var result string

    f, err := os.Create(fileName)
    if err != nil {
        panic(err)
    }
    defer func() {
        if err := f.Close(); err != nil {
            panic(err)
        }
    }()

    rows := ReadInput()
    q := AddUrl(rows)

    // Instantiate default collector
    c := colly.NewCollector()

    c.OnHTML("body", func(e *colly.HTMLElement) {
        result = result + e.Text +"
"
    })

    c.OnRequest(func(r *colly.Request) {
        fmt.Println("visiting", r.URL)
    })

    // Set error handler
    c.OnError(func(r *colly.Response, err error) {
        fmt.Println("Request URL:", r.Request.URL, "failed with response:", r, "
Error:", err)
    })

    q.Run(c)

    f.WriteString(result)

    log.Printf("Scraping done, Please check file %q for results
", fileName)
}

func ReadInput() []string{
    // Read from file
    b, err := ioutil.ReadFile("input.txt") // just pass the file name
    if err != nil {
        fmt.Print(err)
    }
    str := string(b) // convert content to a 'string'

    // split each row
    rows := strings.Split(str,"
")
    return rows
}

But when I am trying to add url from slice of string(url) to gocolly queue it doesn't add all url, just added the last url.

func AddUrl(rows []string) *queue.Queue {
    Q, _ := queue.New(
        2, // Number of consumer threads
        &queue.InMemoryQueueStorage{MaxSize: 10000},
    )
    for _,url:=range rows{
        Q.AddURL(url)
    }
    return Q
}

instead of loop if I add url maually then it's work perfectly, but with loop it just add the last element.

func AddUrl(rows []string) *queue.Queue {
    Q, _ := queue.New(
        2, // Number of consumer threads
        &queue.InMemoryQueueStorage{MaxSize: 10000},
    )
    Q.AddURL("http://bakeshopva.com") 
    Q.AddURL("http://zekescoffeedc.com")
    return Q
}