number：和JavaScript的number完全一致；boolean：就是JavaScript的true或false；string：就是JavaScript的string；null：就是JavaScript的null；array：就是JavaScript的Array表示方式——[]；object：就是JavaScript的{ ... }表示方式。

数据类型只有那么几种！

JSON里面只使用双引号""

 

序列化对象

可以看出JSON和JavaScript是一脉相承的

var xiaoming = {    name: '小明',    age: 14,    gender: true,    height: 1.65,    grade: null,    'middle-school': '\"W3C\" Middle School',    skills: ['JavaScript', 'Java', 'Python', 'Lisp']};var s = JSON.stringify(xiaoming);{
    "name":"小明","age":14,"gender":true,"height":1.65,"grade":null,"middle-school":"\"W3C\" Middle School","skills":["JavaScript","Java","Python","Lisp"]}

 

注意，一个对象被序列化以后就是一个花括号{}，没有什么其他的名称

{  "name": "小明",  "age": 14,  "gender": true,  "height": 1.65,  "grade": null,  "middle-school": "\"W3C\" Middle School",  "skills": [    "JavaScript",    "Java",    "Python",    "Lisp"  ]}

 

反序列化

JSON.parse('{"name":"小明","age":14}'); // Object {name: '小明', age: 14}