1 //javascript对象
 2 var book = {
 3     title: "JavaScript",
 4     authors: [
 5             "Mr.Guo",
 6             "Mrs.An",
 7     ],
 8     edition: 1,
 9     year: 2015
10 };
11 //序列化 JSON.stringify()
12 //js对象转化为JSON字符串
13 var jsonText = JSON.stringify(book);
14 var jsonText1 = JSON.stringify(book, ["title", "year"],4);  //过滤器 + 缩进
15 console.log(jsonText);   //{"title":"JavaScript","authors":["Mr.Guo","Mrs.An"],"edition":1,"year":2015}
16 console.log(jsonText1);
17 // {18 //     "title": "JavaScript",
19 //     "year": 2015
20 // }
21
22
23 //javsccrpt数组,数组可以包含对象
24 var array = [1,2,3,4,{
25     title: "JavaScript",
26     authors: [
27             "Mr.Guo",
28             "Mrs.An",
29     ],
30     edition: 1,
31     year: 2015
32 }];
33 //序列化，js数组转化为JSON字符串
34 var jsonArray = JSON.stringify(array);
35 console.log(jsonArray);
36 //[1,2,3,4,{"title":"JavaScript","authors":["Mr.Guo","Mrs.An"],"edition":1,"year":2015}]
37
38
39 //解析JSON.parse()
40 //JSON字符串转化为javascript对象
41 var jsObj = JSON.parse(jsonArray);
42 var jsObj1 = JSON.parse(jsonText);
43 console.log(jsObj);
44 // [ 1,
45 //   2,
46 //   3,
47 //   4,
48 //   { title: 'JavaScript',
49 //     authors: [ 'Mr.Guo', 'Mrs.An' ],
50 //     edition: 1,
51 //     year: 2015 } ]
52 console.log(jsObj1);
53 // { title: 'JavaScript',
54 //   authors: [ 'Mr.Guo', 'Mrs.An' ],
55 //   edition: 1,
56 //   year: 2015 }
57 58 //JSON字符串转化为javascript对象
59 //eval()方法 eval('('+ str +')')
60 var jsObj2 = eval('('+ jsonArray +')');
61 console.log(jsObj2);
62 // [ 1,
63 //   2,
64 //   3,
65 //   4,
66 //   { title: 'JavaScript',
67 //     authors: [ 'Mr.Guo', 'Mrs.An' ],
68 //     edition: 1,
69 //     year: 2015 } ]