将扳手行字段解码为嵌套结构golang

type Tool struct {
    Name  string `json:"name"`
    Color string `json:"color"`
}

type Wrench struct {
    Brand string `json:"brand"`
    Size  int    `json:"size"`
    Tool  Tool   `json:"tool"`
}

import "encoding/json"

func main() {
    jsonStr := `{"brand":"ABC","size":10,"tool":{"name":"wrench","color":"red"}}`

    var wrench Wrench
    err := json.Unmarshal([]byte(jsonStr), &wrench)
    if err != nil {
        fmt.Println("解码失败：", err)
        return
    }

    fmt.Println(wrench)
}

{ABC 10 {wrench red}}