Golang反射：将一个坚固的成员变量传递给函数并返回其标签名称

   type Teacher struct {
     Name string `json:"name"`
     Age int `json:"age"`
   }


   func getTag(i interface{}) string

   getTag(teacher.Name) // print name
   getTag(teacher.Age) // print age

I wanna roll my function like the code segment, but I can't find a way to achieve this. Any Ideas?

maybe this can help. https://play.golang.org/p/WtqdQAmsbi

x := struct {
    Bar int `json:"bar"`
    Foo string `json:"foo"`

}{2, "foo"}

v := reflect.ValueOf(x)

for i := 0; i < v.NumField(); i++ {
    fmt.Println(v.Type().Field(i).Name)
    fmt.Println(v.Type().Field(i).Tag)
}

To fetch the name of the struct field as well as its tag