JSON对象与字符串间的转化

常用json间字符串与json对象的转化
1.JSON对象转化问字符串

var obj = {name : "Geoff Lui",age : 26};
console.log(obj);
var jsonstr = JSON.stringify(obj);
console.log(jsonstr);//返回结果 '{"name":"Geoff Lui","age":26}'

　2.JSON 字符串转化为 json对象格式
　

var jsonStrs = '{"name":"zhangsan","age":23,"email":"[email protected]"}';
console.log(jsonStrs)
var json = JSON.parse(jsonStrs);
console.log(json);//输出:Object {name: "zhangsan", age: 23, email: "[email protected]"}

　3.把数据在前后端之间传递，需要把json对象转换为json字符串  JSON.stringify({"字段":参数,.....,"字段":参数n});