1. 平级融合，就是下面例子，虽然A在B里面，但是A在struct B里面没有名字，输出结果就是A 和B在同一级的json下面。

package mainimport ("encoding/json""fmt"
)type A struct {Name        string `json:"name"`Description string `json:"description"`URL         string `json:"url"`
}type B struct {Name string `json:"name"`*A
}func main() {a := A{Name: "test", Description: "desc", URL: "https://example.com"}b := B{Name: "new name"}b.A = &adata, _ := json.Marshal(b)fmt.Println(string(data))
}

输出：{"name":"new name","description":"desc","url":"https://example.com"}

2. 两级json，

package mainimport ("encoding/json""fmt"
)type A struct {Name        string `json:"name"`Description string `json:"description"`URL         string `json:"url"`
}type B struct {Name string `json:"name"`Adata *A
}func main() {a := A{Name: "test", Description: "desc", URL: "https://example.com"}b := B{Name: "new name"}b.Adata = &adata, _ := json.Marshal(b)fmt.Println(string(data))
}

输出：{"name":"new name","Adata":{"name":"test","description":"desc","url":"https://example.com"}}