解析NSDictionary返回空结果。

Question

我正在使用Alamofire提出请求并获取数据。

我的问题在json常量之后开始，当我解析我的词典时，它变为空，不变＆＃34;结果＆＃34;变空了。

所以我的代码如下：

URLSession.shared.dataTask(with: request) { (data, response, error) in
                do {
                    guard let data = data else {
                        throw JSONError.NoData
                    }
                    guard let json = try JSONSerialization.jsonObject(with: data, options: .allowFragments) as? NSDictionary else {
                        throw JSONError.ConversionFailed
                    }

                    if let results = json["results"] as? NSDictionary,
                        let lexicalEntries = results["lexicalEntries"] as? NSDictionary,
                        let entries = lexicalEntries["entries"] as? NSDictionary,
                        let senses = entries["senses"] as? NSDictionary {
                        if let definitions = senses["definitions"] as? String {
                            print(definitions)
                        }
                    }

这是我需要解析的数据模型，常数＆＃34; json＆＃34;将其作为字典包含在内。

{
    metadata =     {
        provider = "Oxford University Press";
    };
    results =     (
                {
            id = hello;
            language = en;
            lexicalEntries =             (
                                {
                    entries =                     (
                                                {
                            etymologies =                             (
                                "early 19th century: variant of earlier hollo; related to holla"
                            );
                            homographNumber = 000;
                            senses =                             (
                                                                {
                                    definitions =                                     (
                                        "used as a greeting or to begin a telephone conversation"
                                    );