JSON.parse()和JSON.stringify()

var str = '{"name":"小明","age":"10","sex":"男"}'

JSON.parse(str) 

结果：

Object

1. name: "小明"
2. age: "10"
3. sex: "男"
4. __proto__: Object

var str1 = {a:1,b:2}

JSON.stringify(str1)

结果：

{"a":1,"b":2}