Xcode JSON如何从数组中获取值

Question

我实现了这个来从LastFm获取一个数组。

NSError *error;
NSString *url_string = [NSString stringWithFormat: @"http://ws.audioscrobbler.com/2.0/?method=track.getInfo&api_key=47c35d956f7cd6b43ab94586f0fd3a&artist=Blondie&track=Heart+of+Glass&format=json"]; 
NSData *data = [NSData dataWithContentsOfURL: [NSURL URLWithString:url_string]];
NSMutableArray *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(@"json: %@", json);

这部分工作正常我得到了这些数据：

track =     {
    album =         {
        "@attr" =             {
            position = 1;
        };
        artist = Blondie;
        image =             (
                            {
                "#text" = "https://lastfm-img2.akamaized.net/i/u/34s/ee5b3f50b00a4678c6de7b908c505fb4.png";
                size = small;
            },


                            {
                "#text" = "https://lastfm-img2.akamaized.net/i/u/64s/ee5b3f50b00a4678c6de7b908c505fb4.png";
                size = medium;
            },
                            {
                "#text" = "https://lastfm-img2.akamaized.net/i/u/174s/ee5b3f50b00a4678c6de7b908c505fb4.png";
                size = large;
            },
                            {
                "#text" = "https://lastfm-img2.akamaized.net/i/u/300x300/ee5b3f50b00a4678c6de7b908c505fb4.png";
                size = extralarge;
            }
        );

我的问题是如何从这个关键字＃34;＃text＆＃34;

中获得价值

＆＃34;＃文本＆＃34; =＆＃34; https://lastfm-img2.akamaized.net/i/u/174s/ee5b3f50b00a4678c6de7b908c505fb4.png＆＃34 ;;                     size = large;

类似的东西：

NSLog（@＆＃34;大图：％@＆＃34;，＆＃34; https://lastfm-img2.akamaized.net/i/u/174s/ee5b3f50b00a4678c6de7b908c505fb4.png＆＃34;）;

我真的尝试了一切。

提前致谢。