golang url parameters中包含array

url parameter中这样定义：arrayname=…&arrayname=…

package mainimport (    "fmt"    "net/url")func main() {    v := url.Values{}    v.Set("name", "Ava")    v.Add("friend", "Jess")    v.Add("friend", "Sarah")    v.Add("friend", "Zoe")    // v.Encode() == "name=Ava&friend=Jess&friend=Sarah&friend=Zoe"    fmt.Println(v.Get("name"))    fmt.Println(v.Get("friend"))    fmt.Println(v["friend"])}