如何在Go中读取嵌套的Json？

package main

import (
    "encoding/json"
    "fmt"
    "log"
)

type Person struct {
    Name    string `json:"name"`
    Age     int    `json:"age"`
    Address struct {
        City    string `json:"city"`
        Country string `json:"country"`
    } `json:"address"`
}

func main() {
    // 假设有以下JSON数据
    jsonData := `{
        "name": "John",
        "age": 30,
        "address": {
            "city": "New York",
            "country": "USA"
        }
    }`

    var person Person
    err := json.Unmarshal([]byte(jsonData), &person)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("Name:", person.Name)
    fmt.Println("Age:", person.Age)
    fmt.Println("City:", person.Address.City)
    fmt.Println("Country:", person.Address.Country)
}