Go语言使用匿名结构体解析JSON数据

package main

import (
    "encoding/json"
    "fmt"
)

type Screen struct {
    Size       float32 //屏幕尺寸
    ResX, ResY int     //水平和垂直分辨率
}

type Battery struct {
    Capacity int //电池容量
}

func getJsonData() []byte {
    raw := &struct {
        Screen
        Battery
        HasTouchID bool
    }{
        Screen: Screen{
            Size: 5.5,
            ResX: 1920,
            ResY: 1080,
        },
        Battery: Battery{
            2910,
        },
        HasTouchID: true,
    }
    jsonData, _ := json.Marshal(raw)
    return jsonData
}
func main() {
    jsonData := getJsonData()
    fmt.Printf(string(jsonData))

    screenAndTouch := struct {
        Screen
        HasTouchID bool
    }{}

    json.Unmarshal(jsonData, &screenAndTouch)
    fmt.Printf("%+v\n", screenAndTouch)
}