GoLang不匹配的类型[] string和string

i am trying to write http api on GoLang. When i am comparing 2 string, i am taking this error "invalid operation: a.TypeI == m["type"][0] (mismatched types []string and string)". How can i fix, can anyone help ?

func listHandler(w http.ResponseWriter, r *http.Request) {
    u, errUrl := url.Parse(r.URL.String())
    check(errUrl)

    m, _ := url.ParseQuery(u.RawQuery)
    dat, err := ioutil.ReadFile("data.json")
    check(err)

    var basedata BaseData
    err2 := json.Unmarshal(dat, &basedata)
    check(err2)

    for _, a := range basedata.Pokemons {

        if a.TypeI == m["type"][0] || a.TypeII == m["type"][0] {
            fmt.Fprintln(w, "dosomething")
        }

    }
}

Looking at the Go docs for the url package, you want Values.Get:

if a.TypeI == m.Get("type") || a.TypeII == m.Get("type") {
    // do something
}

Furthermore, can you print the value of r.URL.String() for me like this:

fmt.Println(r.URL.String())