dounai9294
2015-03-31 14:37
浏览 28
已采纳

是否可以在Go中将结构作为参数传递?

I'm trying to pass an array of key, values to another function in Go. Very new to Go so am struggling to figure it out.

package main

import(
    "net/http"
    "fmt"
    "io/ioutil"
    "net/url"
)

type Params struct {
    items []KeyValue
}

type KeyValue struct {
    key string
    value string
}

func main() {
     data := []Params{
          KeyValue{ key: "title", value: "Thingy" },
          KeyValue{ key: "body", value: "Testing 123" }}

     response, error := makePost("test-api.dev", &data)
}

func makePost(urlString string, values []Params) (string, error) {

     v := url.Values{}

    for _, val := range values {
        v.Add(val.key, val.value)
    }

    response, err := http.PostForm(urlString, v)

    defer response.Body.Close()

    contents, err :=  ioutil.ReadAll(response.Body)

    if err != nil {
        fmt.Printf("%s", err)
    }

    return string(contents), err
}

I get errors:

val.key undefined (type Params has no field or method key)
val.value undefined (type Params has no field or method key)

When I compile however.

Go playground link http://play.golang.org/p/CQw03wZmAV

Thanks in advance!

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