json转成string[需要引用json2.js文件]：
复制代码 代码如下:
var arr=[{id:'id',name:'spring'},{id:'id2',name:'jane'}];
var str=json.stringify(arr);
结果：[{id:'id',name:'spring'},{id:'id2',name:'jane'}]
string转化为json:
复制代码 代码如下:
var str=[{id:'id',name:'spring'},{id:'id2',name:'jane'}];
var json=$.parsejson(str);
结果：[{id:'id',name:'spring'},{id:'id2',name:'jane'}]