json转go struct key为数字怎么解决

解析具有动态Key的对象(Parse a JSON object with dynamic key)
下面再做一下复杂的变通，如果把上面的对象数组变为Key为水果ID的对象(object of object)比如

"Fruit" : {
"1": {
"Name": "Apple",
"PriceTag": "$1"},
"2": {
"Name": "Pear",
"PriceTag": "$1.5"}
}

每个Key的名字在声明结构体的时候是不知道值的，这样该怎么声明呢，答案是把Fruit字段的类型声明为一个key为string类型值为Fruit类型的map

package mainimport ("encoding/json""fmt""time"
)func main() {type Fruit struct {Name string `json:"Name"`PriceTag string `json:"PriceTag"`}type FruitBasket struct {Name    stringFruit   map[string]FruitId      int64 `json:"ref"`// 声明对应的json keyCreated time.Time}jsonData := []byte(`{"Name": "Standard","Fruit" : {"1": {"Name": "Apple","PriceTag": "$1"},"2": {"Name": "Pear","PriceTag": "$1.5"}},"ref": 999,"Created": "2018-04-09T23:00:00Z"}`)var basket FruitBasketerr := json.Unmarshal(jsonData, &basket)if err != nil {fmt.Println(err)}for _, item := range basket.Fruit {fmt.Println(item.Name, item.PriceTag)}
}