json - 不能用 "encoding/json"覆盖鹰(类型接口(interface) {})

Question

我有以下代码，我想遍历所有元素或访问一个元素，如 birds["eagle"["quote"][2]但我想不通

package main

import (
    "fmt"
    "encoding/json"
)

func main() {
    birdJson := `{"birds": {"pigeon": {"quotes": "love the pigeons"}, "eagle": {"quotes": ["bird of prey", "soar like an eagle", "eagle has no fear"]}}}`

    var result map[string]interface{}
    json.Unmarshal([]byte(birdJson), &result)
    birds := result["birds"].(map[string]interface{})

    fmt.Printf("%v\n",birds)
    eagle := birds["eagle"]

    for key, value := range eagle {
        fmt.Println(key, value.(string))
    }
}

The Go Playground

Answer 1

有几个问题:

eagle := birds["eagle"] //eagle is of type interface{}

所以将它转换到 map 中:

eagle := birds["eagle"].(map[string]interface{})

现在您可以对其进行迭代:

for key, value := range eagle { 
        for _, e := range value.([]interface{}){
         fmt.Println(key, e.(string))
        }
    }

这里的值又是接口(interface)。所以首先转换为 []interface{}，然后转换为 string。
这是完整的工作代码: https://play.golang.org/p/Bdnwit1wBYh