如何使用 SwiftyJSON 获取此 subJson?

How to get this subJson using SwiftyJSON?

"groups" : {
    "232" : {
      "name" : "John",
      "age" : "22"
      }
    },
    "143" : {
      "name" : "Dylan",
      "age" : "22"
      }
    }

如何使用 swiftyJSON 获取 "name"?我得到了 id 值,但 ["name"] 始终为 nil 代码:

        for (results,subJson):(String, JSON) in json["groups"] {
                    let id = results
                    print(id) //--> 232
                    let name = subJson["\(id)"]["name"].string
                    print(name) //--> nil
         }

name键在subJson里面,去掉id下标:

for (id, subJson):(String, JSON) in json["groups"] {
    print(id)
    if let name = subJson["name"].string {
        print(name)
    }
}